SJ2148 Datasheet PDF - SeCoS

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SJ2148
SeCoS

Part Number SJ2148
Description Low Dropout Voltage Regulator
Page 5 Pages


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Elektronische Bauelemente
SJ2148
1.5A CMOS
Low Dropout Voltage Regulator
RoHS Compliant Product
Description
TO-252
The SJ2148 series of positive,linear regulators feature low quiescent
current (45µA typ.) with low dropout voltage, making them ideal
for battery applications.These rugged devices have bothThermal
Shutdown and Current Fold-back to prevent device failure under
the "Worst" of operating conditions.The SJ 2148 is stable with an
output capacitance of 4.7µF or greater.
Features
* Low Temperature Coefficient
* Over-Temperature Shutdown
* Very Low Dropout Voltage
* High Accurate ±1.5%
* Short Circuit Current Fold-back
* Guaranteed 1.5A output
* Current Limiting
Applications
* PC Peripherals
* Wireless Devices
* Portable Electronics
* Battery Powered Widgets
* Instrumentation
REF.
A
B
C
D
E
F
S
Millmeter
Min. Max.
6.40 6.80
5.20 5.50
6.80 7.20
2.20 2.80
2.30 REF.
0.70 0.90
0.60 0.90
REF.
G
H
J
K
L
M
R
Millmeter
Min. Max.
0.50 0.70
2.20 2.40
0.45 0.55
0 0.15
0.90 1.50
5.40 5.80
0.80 1.20
Typical Circuit
SJ2148
Functional Block Diagram
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Free Datasheet http://www.datPaashgeee1t4ouf.5com/



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Elektronische Bauelemente
SJ2148
1.5A CMOS
Low Dropout Voltage Regulator
Absolute Maximum Ratings
Parameter
Symbol
Ratings
Unit
Input Max Voltage
VIN 8 V
Output Current
IOUT
PD/( VIN- VO)
A
Output Voltage
VOUT
1.5~5.0
V
Operating Ambient Temperature
Topr -40 ~ +85
Junction Temperature
Tj -40 ~ +125
Maximum Junction Temperature
Tj Max
150
Thermal Resistance
jc
Conductive
Non-Conductive
ja
7
30
90
/W
/W
Power Dissipation( T=100 )
PD 1.2 W
EDS Classification
B
Electrical Characteristics Ta=25 unless otherwise noted
Parameter
Output Voltage
Output Current
Symbol
VOUT(E)
(Note1)
IO
Condition
VIN=VOUT(T)+2V, IO=1mA
VIN=VOUT(T)+2V, VOUT VOUT(E)*0.96
Min
-1.5%
1.5
TYP
VOUT(T)
(Note2)
-
Max
1.5%
-
Unit
V
A
Current Limit
ILIM
VIN=VOUT(T)+2V, VO>1.2V
1.5 2.0
-
A
Load Regulation
REGLOAD
VIN=VOUT(T)+2V, IO=1mA to 1.5A
-1 0.2 1
%
Dropout Voltage
VDROPOUT
IO=1.5A
1.4V<VOUT(T) 2.0V
VO=VOUT(E)-2% 2.0V<VOUT(T) 2.8V
-
-
- 1300
- 800 mV
2.8V<VOUT(T) - - 600
Quiescent Current
IQ
VIN= VOUT(T)+2V, IO=0mA
- 45 70
A
Ground Pin Current
Line Regulation
IGND
REGLINE
VIN= VOUT(T)+2V, IO=1mA~1.5A
IO=1mA
VIN=VOUT(T)+1 to
VOUT((TT))++21 to
VOUT(T) 2.0V
2.0V<VOUT(T)<4.0V
4.0V VOUT(T)
-
-0.15
-0.1
-0.4
45
-
0.02
-
-
0.15
0.1
0.4
A
%
Input Voltage
VIN
Note3
-
7
V
Over Temperature Shutdown
OTS
- 150 -
Over Temperature Hysterisis
Output Voltage
Temperature Coefficient
Short Circuit Current
OTH
TC
ISC
VIN=VOUT(T)+1V, VOUT<0.4V
- 30 -
- 30 - ppm/
- 750 -
mA
Power Supply Rejection
Output Voltage Noise
PSRR
eN
Io=100mA
Co=4.7 F
f=10Hz~100kHz
Io=10mA,
CBYP=0 F
f=100Hz
f=1kHz
f=10kHz
Co=4.7 F
- 70 -
- 50 -
- 20 -
dB
- 30 - Vrms
Note 1: VOUT (E) =Effective Output Voltage (i.e. the output voltage when “VOUT (T) + 2.0V” is provided at the VIN pin while maintaining a
certain IOUT value).
2: VOUT (T) =Specified Output Voltage
3: VIN (MIN) =VOUT+VDROPOUT
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 2 of 5
Free Datasheet http://www.datasheet4u.com/



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Elektronische Bauelemente
SJ2148
1.5A CMOS
Low Dropout Voltage Regulator
Ordering Information(contd.)
Part Number
SJ2148-15
SJ2148-25
SJ2148-36
SJ2148-50
Marking
8V152
XXXX
8V252
XXXX
8V362
XXXX
8V502
XXXX
Output Voltage
1.5V
2.5V
3.6V
5.0V
Part Number
SJ2148-18
SJ2148-33
SJ2148-47
Marking
8V182
XXXX
8V332
XXXX
8V472
XXXX
Output Voltage
1.8V
3.3V
4.75V
Characteristics Curve
(T)+1 to
h tp://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Page 3 of 5
Free Datasheet http://www.datasheet4u.com/



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Elektronische Bauelemente
SJ2148
1.5A CMOS
Low Dropout Voltage Regulator
115
85
55
25
-5
-45
http://www.SeCoSGmbH.com/
01-Jun-2002 Rev. A
Any changing of specification will not be informed individual
Free Datasheet http://www.datPaashgeee5t4ouf.5com/



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