TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
VOLTAGE REGULATOR WITH ON/OFF SWITCH
FEATURES
s High Voltage Precision at ± 2.4%
s Active High On/Off Control
s Very Low Dropout Voltage 80 mV at 30 mA
s Very Low Noise
s Very Small SOT-23L or SOT-89-5 Surface Mount
Packages
s Internal Thermal Shutdown
s Short Circuit Protection
APPLICATIONS
s Battery Powered Systems
s Cellular Telephones
s Pagers
s Personal Communications Equipment
s Portable Instrumentation
s Portable Consumer Equipment
s Radio Control Systems
s Toys
s Low Voltage Systems
DESCRIPTION
The TK112xxA is a low dropout linear regulator with a built-
in electronic switch. The internal switch can be controlled
by TTL or CMOS logic levels. The device is in the ON state
when the control pin is pulled to a logic high level. An
external capacitor can be connected to the noise bypass
pin to lower the output noise level to 30 µVrms.
An internal PNP pass transistor is used to achieve a low
dropout voltage of 70 mV (typ.) at 30 mA load current. The
TK112xxA has a very low quiescent current of 180 µA at no
load and 1 mA with a 30 mA load. The standby current is
typically 100 nA. The internal thermal shutdown circuitry
limits the junction temperature to below 150 °C. The load
current is internally monitored and the device will shutdown
in the presence of a short circuit or overcurrent condition at
the output.
The TK112xxA is available in either 6 pin SOT-23L or 5 pin
SOT-89-5 surface mount packages.
Voltage Code
ORDERING INFORMATION
TK112 A
Tape/Reel Code
Package Code
VIN
CONTROL
VOLTAGE CODE
20 = 2.0 V* 35 = 3.5 V*
21 = 2.1 V
36 = 3.6 V
22 = 2.22 V* 38 = 3.8 V
25 = 2.5 V* 40 = 4.0 V*
28 = 2.8 V* 42 = 4.2 V
29 = 2.9 V
45 = 4.5 V*
30 = 3.0 V* 48 = 4.8 V*
31 = 3.1 V* 49 = 4.9 V
33 = 3.3 V* 50 = 5.0 V*
55 = 5.5 V
PACKAGE CODE
M: SOT-23L
U: SOT-89-5
TAPE/REEL CODE
BX : Bulk/Bag
TL : Tape Left
(SOT-23L)
TB : Tape Bottom
(SOT-89-5)
* Indicates voltage is available in a SOT-89-5 package.
January, 1996 TOKO, Inc.
1-4-96
TK112XXA
CONTROL 1
P50
GND 2
NOISE
BYPASS
3
NOISE
BYPASS 1
GND 2
CONTROL 3
6 VIN
5 GND
4 VOUT
TK112xxA • PO
6 VOUT
5 GND
4 VIN
BLOCK DIAGRAM
S
S
S
S SS
THERMAL
PROTECTION
S
S
S
+
S
SS
BANDGAP
REFERENCE
SS
S
S
S VOUT
+S
S
S GND
NOISE BYPASS
Page 1


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
ABSOLUTE MAXIMUM RATINGS
Supply Voltage ......................................................... 16 V
Power Dissipation SOT-23L (Note 1) ................. 400 mW
Power Dissipation SOT-89-5 (Note 2) ................ 800 mW
Storage Temperature Range ................... -55 to +150 °C
Operating Temperature Range ...................-30 to +80 °C
Lead Soldering Temp. (3 sec.) .............................. 230 °C
Junction Temperature ........................................... 150 °C
TK11220A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
µA
ISTBY
Standby Current
VIN = 8 V, at output off
0.1 µA
VO
VDROP
Output Voltage
Dropout Voltage
IO = 30 mA
IO = 60 mA
IO = 150 mA
1.92 2.00 2.08
0.16 0.26
0.29 0.4
V
V
V
IO Output Current
VOUT = 1.7 V
180 240
mA
IOR Recommended Output Current
150 mA
Line Reg
Load Reg
Line Regulation
Load Regulation
RR Ripple Rejection
VIN = 3 V 8 V
IO = 5 mA 60 mA (Note 3)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
3.0 20 mV
10 50 mV
20 100 mV
30 160 mV
55 dB
VO/TA
Output Voltage
Temperature Dependency
IO = 10 mA
-20 °C TA + 75 °C
0.2 mV/ °C
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30 µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25 V
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30 µA
Output on
1.8
V
Output off
0.6 V
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3 ms
Note 1: Power dissipation is 400 mW when mounted as recommended. Derate at 3.2 mW/°C for TA > 25 °C.
Note 2: Power dissipation is 800 mW when mounted as recommended. Derate at 6.4 mW/°C for TA > 25 °C.
Note 3: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
Page 2
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11221A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.1 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 1.8 V
VIN = 3.1 V 8.1 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 3.5 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
2.02
180
170
2.10
0.16
0.29
240
3.0
10
20
30
55
0.2
30
1.25
350
0.1
2.18
0.26
0.4
150
20
50
100
160
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
January, 1996 TOKO, Inc.
1-4-96
Page 3


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11222A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.22 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO
VDROP
Output Voltage
Dropout Voltage
IO = 30 mA
IO = 60 mA
IO = 150 mA
2.14 2.22
2.3
0.16 0.26
0.29 0.4
IO Output Current
VOUT = 1.92 V
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
RR Ripple Rejection
VIN = 3.22 V 8.22 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
3.0 20
10 50
20 100
30 160
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 3.72 V, IO = 10 mA
-20 °C TA + 75 °C
0.05
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
Page 4
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11225A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 2.2 V
VIN = 3.5 V 8.5 V (Note 1)
IO = 5 mA 60 mA
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 4.0 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
2.42
180
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
Output on
Output off
IO = 30 mA,
VCONT = 0 V 1.8 V
1.8
TYP
170
2.50
0.16
0.29
240
3.0
10
20
30
55
0.05
30
1.25
12
0.3
MAX
350
0.1
2.58
0.26
0.4
150
20
50
100
160
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
30 µA
V
0.6 V
ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 5


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11228A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.8 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO Output Voltage
IO = 30 mA
2.72 2.80 2.88
VDROP
IO
Dropout Voltage
Output Current
IO = 60 mA
IO = 150 mA
VOUT = 2.5 V
0.16 0.26
0.29 0.4
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
RR Ripple Rejection
VIN = 3.8 V 8.8 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
3.0 20
10 50
20 100
30 160
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 4.3 V, IO = 10 mA
-20 °C TA + 75 °C
0.05
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
Page 6
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11229A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 3.9 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 2.6 V
VIN = 3.9 V 8.9 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 4.4 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
2.82
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
Output on
Output off
IO = 30 mA,
VCONT = 0 V 1.8 V
1.8
TYP
170
2.90
0.16
0.29
240
3.0
10
20
30
55
0.05
30
1.25
12
0.3
MAX
350
0.1
2.98
0.26
0.4
150
20
50
100
160
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
30 µA
V
0.6 V
ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 7


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11230A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO Output Voltage
IO = 30 mA
2.92 3.00 3.08
VDROP
Dropout Voltage
IO = 60 mA
IO = 150 mA
0.16 0.26
0.29 0.4
IO Output Current
VOUT = 2.7 V
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
VIN = 4 V 9 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
3.0 20
10 50
20 100
30 160
RR Ripple Rejection
100 mV(rms), IO = 10 mA
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 4.5 V, IO = 10 mA
-20 °C TA + 75 °C
0.05
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
Page 8
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11231A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.1 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 2.8 V
VIN = 4.1 V 9.1 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 4.6 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
3.02
180
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
Output on
Output off
IO = 30 mA,
VCONT = 0 V 1.8 V
1.8
TYP
170
3.10
0.16
0.29
240
3.0
10
20
30
55
0.05
30
1.25
12
0.3
MAX
350
0.1
3.18
0.26
0.4
150
20
50
100
160
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
30 µA
V
0.6 V
ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 9


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11233A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.3 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX UNITS
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
µA
ISTBY
Standby Current
VIN = 8 V, at output off
0.1 µA
VO
VDROP
IO
Output Voltage
Dropout Voltage
Output Current
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 3 V
3.22 3.30 3.38
0.16 0.26
0.29 0.4
180 240
V
V
V
mA
IOR Recommended Output Current
150 mA
Line Reg
Load Reg
Line Regulation
Load Regulation
VIN = 4.3 V 9.3 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
3.0 20 mV
10 50 mV
20 100 mV
30 160 mV
RR Ripple Rejection
100 mV(rms), IO = 10 mA
55
dB
VO/TA
Output Voltage
Temperature Dependency
VIN = 4.8 V, IO = 10 mA
-20 °C TA + 75 °C
0.05 mV/ °C
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30 µV(rms)
VREF
Noise Bypass Terminal Voltage
1.25 V
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30 µA
Output on
1.8
V
Output off
0.6 V
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3 ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
Page 10
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11235A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 3.2 V
VIN = 4.5 V 9.5 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 5 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
3.42
180
ICONT
VCONT
Control Current
Control Voltage
Output on, VCONT = 1.8 V
Output on
Output off
1.8
tr Output Rise Time
IO = 30 mA,
VCONT = 0 V 1.8 V
TYP
170
3.50
0.16
0.29
240
3.0
10
20
30
55
0.05
30
1.25
12
0.3
MAX
350
0.1
3.58
0.26
0.4
150
20
50
100
160
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
30 µA
V
0.6 V
ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
January, 1996 TOKO, Inc.
1-4-96
Page 11


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11236A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.6 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO
VDROP
Output Voltage
Dropout Voltage
IO = 30 mA
IO = 60 mA
IO = 150 mA
3.51 3.60 369
0.16 0.26
0.29 0.4
IO Output Current
VOUT = 3.3 V
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
VIN = 3.6 V 9.6 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
3.0 20
10 50
20 100
30 160
RR Ripple Rejection
100 mV(rms), IO = 10 mA
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 5.3 V, IO = 10 mA
-20 °C TA + 75 °C
0.1
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
Page 12
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11238A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 4.8 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO
VDROP
Output Voltage
Dropout Voltage
IO = 30 mA
IO = 60 mA
IO = 150 mA
3.71 3.80 3.89
0.16 0.26
0.29 0.4
IO Output Current
VOUT = 3.5 V
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
VIN = 4.8 V 9.8 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
3.0 20
10 50
20 100
30 160
RR Ripple Rejection
100 mV(rms), IO = 10 mA
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 5.3 V, IO = 10 mA
-20 °C TA + 75 °C
0.1
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
30
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
January, 1996 TOKO, Inc.
1-4-96
Page 13


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11240A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 3.7 V
VIN = 5 V 10 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 5.5 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
3.90
180
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
Output on
Output off
IO = 30 mA,
VCONT = 0 V 1.8 V
1.8
TYP
170
4.00
0.16
0.29
240
3.0
10
20
30
55
0.1
40
1.25
12
0.3
MAX
350
0.1
4.10
0.26
0.4
150
20
50
100
160
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
30 µA
V
0.6 V
ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
Page 14
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11242A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.2 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 3.9 V
VIN = 5.2 V 10.2 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 5.7 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
4.10
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
Output on
Output off
IO = 30 mA,
VCONT = 0 V 1.8 V
1.8
TYP
170
4.20
0.16
0.29
240
3.0
10
20
30
55
0.1
40
1.25
12
0.3
MAX
350
0.1
4.30
0.26
0.4
150
20
50
100
160
30
0.6
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
January, 1996 TOKO, Inc.
1-4-96
Page 15


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11245A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 4.2 V
VIN = 5 V 10 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 6 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
4.39
180
ICONT
VCONT
Control Current
Control Voltage
Output on, VCONT = 1.8 V
Output on
Output off
1.8
tr Output Rise Time
IO = 30 mA,
VCONT = 0 V 1.8 V
TYP
170
4.50
0.16
0.29
240
3.0
10
20
30
55
0.1
40
1.25
12
0.3
MAX
350
0.1
4.61
0.26
0.4
150
20
50
100
160
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
30 µA
V
0.6 V
ms
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
Page 16
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11248A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.8 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN
ISTBY
VO
VDROP
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 4.5 V
VIN = 5.8 V 10.8 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 6.3 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
4.68
180
170
4.80
0.16
0.29
240
3.0
10
20
30
55
0.1
40
1.25
350
0.1
4.92
0.26
0.4
150
20
50
100
160
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
January, 1996 TOKO, Inc.
1-4-96
Page 17


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11249A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 5.9 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO
VDROP
Output Voltage
Dropout Voltage
IO = 30 mA
IO = 60 mA
IO = 150 mA
4.78 4.90 5.02
0.16 0.26
0.29 0.4
IO Output Current
VOUT = 4.6 V
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
VIN = 5.9 V 10.9 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
3.0 20
10 50
20 100
30 160
RR Ripple Rejection
100 mV(rms), IO = 10 mA
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 6.4 V, IO = 10 mA
-20 °C TA + 75 °C
0.2
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
40
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
Page 18
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11250A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 6.0 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
IIN
ISTBY
VO
VDROP
PARAMETER
Quiescent Current
Standby Current
Output Voltage
Dropout Voltage
IO
IOR
Line Reg
Load Reg
Output Current
Recommended Output Current
Line Regulation
Load Regulation
RR
VO/TA
VNO
Ripple Rejection
Output Voltage
Temperature Dependency
Output Noise Voltage
VREF
Noise Bypass Terminal Voltage
Control Terminal Specification
ICONT
VCONT
Control Current
Control Voltage
tr Output Rise Time
TEST CONDITIONS
IO = 0 mA, Except ICONT
VIN = 8 V, at output off
IO = 30 mA
IO = 60 mA
IO = 150 mA
VOUT = 4.7 V
VIN = 6 V 11 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
VIN = 6.5 V, IO = 10 mA
-20 °C TA + 75 °C
10 Hz < f < 80 kHz,
IO = 30 mA
Output on, VCONT = 1.8 V
Output on
Output off
IO = 30 mA,
VCONT = 0 V 1.8 V
MIN
4.88
180
1.8
TYP
170
5.00
0.16
0.29
240
3.0
10
20
30
55
0.2
50
1.25
12
0.3
MAX
350
0.1
5.12
0.26
0.4
150
20
50
100
160
30
0.6
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
January, 1996 TOKO, Inc.
1-4-96
Page 19


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TK11255A ELECTRICAL CHARACTERISTICS
Test conditions: TA = 25 °C, VIN = 6.5 V, CP = 0.1 µF, unless otherwise specified.
SYMBOL
PARAMETER
TEST CONDITIONS
MIN TYP MAX
IIN Quiescent Current
IO = 0 mA, Except ICONT
170 350
ISTBY
Standby Current
VIN = 8 V, at output off
0.1
VO
VDROP
Output Voltage
Dropout Voltage
IO = 30 mA
IO = 60 mA
IO = 150 mA
5.36 5.5 5.63
0.16 0.26
0.29 0.4
IO Output Current
VOUT = 5.2 V
180 240
IOR Recommended Output Current
150
Line Reg
Load Reg
Line Regulation
Load Regulation
RR Ripple Rejection
VIN = 6.5 V 11.5 V
IO = 5 mA 60 mA (Note 1)
IO = 5 mA 100 mA
IO = 5 mA 150 mA
100 mV(rms), IO = 10 mA
3.0 20
10 50
20 100
30 160
55
VO/TA
Output Voltage
Temperature Dependency
VIN = 7 V, IO = 10 mA
-20 °C TA + 75 °C
0.2
VNO Output Noise Voltage
10 Hz < f < 80 kHz,
IO = 30 mA
50
VREF
Noise Bypass Terminal Voltage
1.25
Control Terminal Specification
ICONT
VCONT
tr
Control Current
Control Voltage
Output Rise Time
Output on, VCONT = 1.8 V
12 30
Output on
1.8
Output off
0.6
IO = 30 mA,
VCONT = 0 V 1.8 V
0.3
Note 1: This is a pulse measurement where TJ is constant. The output change due to temperature is not included.
UNITS
µA
µA
V
V
V
mA
mA
mV
mV
mV
mV
dB
mV/ °C
µV(rms)
V
µA
V
V
ms
Page 20
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
SOT-23L
VIN +
_
I IN
AS
+ 0.1 µF
V IN
65
VO
SS
+
V O 2.2 µF
IO
V
4
TEST CIRCUITS
V IN
V
S
IO
SOT-89-5
VO
S
+
2.2 µF
VIN
65 4
I IN
SA
++
0.1 µF _ VIN
CONT
+
_
S
V
1 2 3 NOISE
CONT
A
I CONT
BYPASS
0.1 µF
Transient Response
VIN
112XXA
VOUT
Rs
Cont +
1µF
CP +
0.1 µ F
CL = .22 t o 10 µ F
NOISE
BYPASS 1 2 3 CONT
0.1 µF
I CONT
A
•Pin 5 is heat fin
Contact to GND
S
V
+
_ V CONT
TYPICAL PERFORMANCE CHARACTERISTICS
LOAD REGULATION
TA = 25 °C unless otherwise specified
LINE REGULATION
SUPPLY VOLTAGE vs. INPUT CURRENT
(NO LOAD)
20
mV/Div
50
mV/Div
2
VV
OO
1
3V 4V 5V
2V
0 50 100 150
IO (mA)
1
QUIESCENT CURRENT vs. LOAD
CURRENT
20
10
0 100
IO (mA)
January, 1996 TOKO, Inc.
200
4
0 10 20
VCC (V)
2
OUTPUT VOLTAGE vs. INPUT VOLTAGE
50
IOm=V0/DmivA
IO = 30 mA
IO = 60 mA
IO = 90 mA
VCC = VOUT
VCC
1-4-96
50
mV/Div
5
0 5 10
VCC (V)
79
DROPOUT VOLTAGE vs. LOAD
CURRENT
500 TA = 25 °C
400
300
200
100
0 100 200
IO (mA)
6
Page 21


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
SHORT CURRENT vs. OUTPUT VOLTAGE
5
5V
4
4V
3
3V
2
2V
1
CONTROL CURRENT vs. CONTROL
VOLTAGE
50 TA = 25 °C
40
RC = 0
30
RC = 10 k
RC = 50 k
RC = 100 k
20
10
RC = 0
RC = 10 k
RC = 50 k
RC = 100 k
V
O
1000
500
QUIESCENT CURRENT vs. INPUT
VOLTAGE (OFF)
TA = 25 °C
0
150
300 0 –1 –2 –3 –4 –5
0
10 20
IO (mA)
80
VC(ON) = VCC VCONT (V)
8
VCC (V)
9
NOISE LEVEL vs. FREQUENCY
TA = 25 °C
-50
CL = 3.3 µ F, CP = 0
CL = 3.3 µ F, CP = 0.01 µ F
-100
Analyze
r
0 500 k
FREQUENCY
(Hz)
1M
11
RIPPLE REJECTION vs. FREQUENCY
0
-50
-100
100
1 k 10 k
FREQUENCY
(Hz)
100 k
12
LINE TRANSIENT RESPONSE
50 µ s/Div
VCC
(VO+1)V
(VO+2)V
CL = 0.22 µ F
CP = 1000 pF
VO 10 mV/Div
CL = 2.2 µ F
CP = 0.01 µ F
13
LOAD TRANSIENT RESPONSE
50 µ s/Div
100 mA
IO 50 mA
CL = 0.22 µ F
VO
50 mV/Div
CL = 2.2 µ F
14
OUTPUT VOLTAGE RESPONSE
(OFF ON)
5 µ s/Div
SD
CL = 0.68 µ F CL = 1.0 µ F
VO
CL = 0.22 µ F
CL = 2.2 µ F
CL = 1000 pF IO = 60 mA
15
Page 22
1-4-96
NOISE LEVEL vs. BYPASS CAPACITOR
250
CL = 22 µ F
200
IO = 60 mA
VO = 5 V
150 VO = 2 V
100
CL = 10 µ F
50
VO = 5 V
VO = 2 V
1pF 10pF 100pF 1000pF 0.01µ F 0.1µ F
CP 16
January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
QUIESCENT CURRENT vs.
TEMPERATURE
DROPOUT VOLTAGE vs. TEMPERATURE
CONTROL CURRENT vs. TEMPERATURE
5 500
50
4
3
2
1
0
-50
IO = 60
mA
IO = 30
0 50 mA 100
TEMPERATURE (°C)
17
400
300
200
100
0
-50
IO = 100
mA
IO = 30
mA
0 50 100
TEMPERATURE (°C)
18
40
VCONT = 5 V
30
VCONT = 2.4 V
20
10
0
-50
0 50
TEMPERATURE (°C)
100
19
CONTROL VOLTAGE THRESHOLD vs.
TEMPERATURE
2.0 RC = 0
1.0
0
-50
0 50
TEMPERATURE (°C)
TK11220A
100
20
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
3
2
1
0 150
IO (mA)
January, 1996 TOKO, Inc.
300
26
OUTPUT CURRENT vs. TEMPERATURE
280
260
240
220
200
0
-50
0 50
TEMPERATURE (°C)
100
21
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
1
0 5 10
VCC (V)
25
1-4-96
OUTPUT VOLTAGE VARIATION
10 mV/Div
+
0 2V
4V
5V
3V
-50
0 50
TEMPERATURE (°C)
100
81
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
0
-50 mV
-50
0 50
TEMPERATURE (°C)
100
27
Page 23


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11221A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
TA = 25 °C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
52
VCC (V)
53
TEMPERATURE (°C)
54
TK11222A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
55
VCC (V)
56
TEMPERATURE (°C)
57
TK11225A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
3
2
1
0
Page 24
150
IO (mA)
300
29
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
10
05
VCC (V)
1-4-96
-50 mV
10 -50
28
0 50
TEMPERATURE (°C)
100
30
January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TK11228A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TA = 25 °C unless otherwise specified
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
1
2
0
1
0 150 300
IO (mA)
59
TK11229A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
-50 mV
0
5
10
-50 0
50 100
VCC (V)
58
TEMPERATURE (°C)
60
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
10 mV/Div
+50 mV
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
61
VCC (V)
62
TEMPERATURE (°C)
63
TK11230A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
3
2
1
0 150
IO (mA)
January, 1996 TOKO, Inc.
300
32
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
10 mV/Div
+50 mV
10
-50 mV
0
5
10
-50 0
50 100
VCC (V)
31
TEMPERATURE (°C)
33
1-4-96 Page 25


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11231A
TA = 25 °C unless otherwise specified
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
1
2
0
1
0 150 300
IO (mA)
35
TK11233A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
-50 mV
0
5
10
-50 0
50 100
VCC (V)
34
TEMPERATURE (°C)
36
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
64
VCC (V)
65
TEMPERATURE (°C)
66
TK11235A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
3
2
1
0
Page 26
150
IO (mA)
300
38
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
10
05
VCC (V)
1-4-96
-50 mV
10 -50
37
0 50
TEMPERATURE (°C)
100
39
January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11236A
TA = 25 °C unless otherwise specified
OUTPUT VOLTAGE vs. LOAD CURRENT
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
5
TA = 25 °C
2
+50 mV
4
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
82
VCC (V)
83
TEMPERATURE (°C)
84
TK11238A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
+50 mV
4
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
67
VCC (V)
68
TEMPERATURE (°C)
69
TK11240A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
4
3
2
1
0 150
IO (mA)
January, 1996 TOKO, Inc.
300
41
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
10
05
VCC (V)
1-4-96
-50 mV
10 -50
40
0 50
TEMPERATURE (°C)
100
42
Page 27


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11242A
TA = 25 °C unless otherwise specified
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
70
VCC (V)
71
TEMPERATURE (°C)
72
TK11245A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
1
2
0
1
0
TK11248A
150
IO (mA)
300 0
44
5
VCC (V)
-50 mV
10 -50
43
0 50
TEMPERATURE (°C)
100
45
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
10
2
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
73
VCC (V)
74
TEMPERATURE (°C)
75
Page 28
1-4-96 January, 1996 TOKO, Inc.


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xxA
TYPICAL PERFORMANCE CHARACTERISTICS (CONT.)
TK11249A
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C unless otherwise specified
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
5
TA = 25 °C
2
+50 mV
4
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
85
VCC (V)
86
TEMPERATURE (°C)
87
TK11250A
OUTPUT VOLTAGE vs. LOAD CURRENT
5 TA = 25 °C
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
4
3
1
2
0
1
-50 mV
0 150 300 0
5
10
-50 0
50 100
IO (mA)
50
VCC (V)
49
TEMPERATURE (°C)
51
TK11255A
OUTPUT VOLTAGE vs. LOAD CURRENT
TA = 25 °C
5
4
3
2
1
0 150
IO (mA)
January, 1996 TOKO, Inc.
300
76
INPUT CURRENT vs. INPUT VOLTAGE
(NO LOAD)
2
+50 mV
OUTPUT VOLTAGE CHANGE vs.
TEMPERATURE
10
-50 mV
0
5
10
-50 0
50 100
VCC (V)
77
TEMPERATURE (°C)
78
1-4-96 Page 29


TK11221A (TOKO)
VOLTAGE REGULATOR

No Preview Available !

Click to Download PDF File for PC

TK112xx A
DEFINITION AND EXPLANATION OF TECHNICAL TERMS
LINE REGULATION (LINE REG)
Line regulation is the relationship between change in
output voltage due to a change in input voltage.
LOAD REGULATION (LOAD REG)
Load regulation is the relationship between change in
output voltage due to a change in load current.
DROP OUT VOLTAGE (VDROP)
This is a measure of how well the regulator performs as the
input voltage decreases. The smaller the number, the
further the input voltage can decrease before regulation
problems occur. Nominal output voltage is first measured
when VIN = VOUT + 1 at a chosen load current. When the
output voltage has dropped 100 mV from the nominal, VIN
- VOUT is the dropout voltage. This voltage is affected by
load current and junction temperature.
OUTPUT NOISE VOLTAGE
This is the effective AC voltage that occurs on the output
voltage under the condition where the input noise is low and
with a given load, filter capacitor, and frequency range.
THERMAL PROTECTION
the SOT-23L is increased to 400 mW. For operation at
ambient temperatures over 25 °C, the power dissipation of
the SOT-23L device should be derated at 3.2 mW/°C. The
power dissipation of the SOT-89-5 package is 800 mW
when mounted as recommended. Derate the power dissi-
pation at 6.4 mW/°C for operation above 25 °C. To
determine the power dissipation for shutdown when
mounted, attach the device on the actual PCB and deliber-
ately increase the output current (or raise the input voltage)
until the thermal protection circuit is activated. Calculate
the power dissipation of the device by subtracting the
output power from the input power. These measurements
should allow for the ambient temperature of the PCB. The
value obtained from PD/(150 °C - TA) is the derating factor.
The PCB mounting pad should provide maximum thermal
conductivity in order to maintain low device temperatures.
As a general rule, the lower the temperature, the better the
reliability of the device. The Thermal resistance when
mounted is expressed as follows:
TJ = 0JA X PD + TA
For Toko ICs, the internal limit for junction temperature is
150 °C. If the ambient temperature, TA is 25 °C, then:
150 °C = 0JA X PD + 25 °C
0JA X PD = 125 °C
0JA = 125 °C/ PD
This is an internal feature which turns the regulator off when
the junction temperature rises above 150 °C. After the
regulator turns off, the temperature drops and the regulator
output turns back on. Under certain conditions, the output
waveform may appear to be an oscillation as the output
turns off and on and back again in succession.
PACKAGE POWER DISSIPATION (PD)
This is the power dissipation level at which the thermal
sensor is activated. The IC contains an internal thermal
sensor which monitors the junction temperature. When the
junction temperature exceeds the monitor threshold of
150 °C, the IC is shutdown. The junction temperature rises
as the difference between the input power (VIN X IIN) and
the output power (VOUT X IOUT) increases. The rate of
temperature rise is greatly affected by the mounting pad
configuration on the PCB, the board material, and the
ambient temperature. When the IC mounting has good
thermal conductivity, the junction temperature will be low
even if the power dissipation is great. When mounted on
the recommended mounting pad, the power dissipation of
PD is the value when the thermal sensor is activated. A
simple way to determine PD is to calculate VIN X IIN when
the output side is shorted. Input current gradually falls as
temperature rises. You should use the value when thermal
equilibrium is reached.
The range of currents usable can also be found from the
graph below.
(mW)
PD 3
Dpd 6
4
5
Procedure:
25 50 75
T (°C)
150
1.) Find PD
2.) PD1 is taken to be PD X (0.8 ~ 0.9)
3.) Plot PD1 against 25 °C
4.) Connect PD1 to the point corresponding to the 150 °C
with a straight line.
Page 30
1-4-96 January, 1996 TOKO, Inc.




TK11221A.pdf
Click to Download PDF File