MIC69101 Datasheet PDF - MICREL

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MIC69101
MICREL

Part Number MIC69101
Description Single Supply VIN / LOW VIN / LOW VOUT / 1A LDO
Page 8 Pages


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MIC69101/103
Single Supply VIN, LOW VIN, LOW VOUT,
1A LDO
General Description
Features
The MIC69101/103 is the 1A output current member of the
MIC69xxx family of high current, low voltage regulators,
which support currents of 1A, 1.5A, 3A, and 5A. The
MIC69101/103 operates from a single low voltage supply,
yet offers high precision and ultra-low dropout of 500mV
under worst case conditions.
The MIC69101/103 operates from an input voltage of
1.65V to 5.5V. It is designed to drive digital circuits
requiring low voltage at high currents (i.e. PLDs, DSP,
microcontroller, etc.). These regulators are available in
adjustable and fixed output voltages including 1.8V. The
adjustable version can support output voltages down to
0.5V.
The µCap design of the MIC69101/103 is optimized for
stability with low value low-ESR ceramic output capacitors.
Features of the MIC69101/103 include thermal shutdown
and current limit protection. Logic enable and error flag
pins are also available.
Single input voltage range: VIN: 1.65V to 5.5V
Maximum dropout (VIN – VOUT) of 500mV
over temperature
Adjustable output voltage down to 0.5V
Stable with 4.7µF ceramic output capacitor
Excellent line and load regulation specifications
Logic controlled shutdown
Thermal shutdown and current limit protection
10-Pin 3mm x 3mm MLF® package
Available –40°C to +125°C junction temperature
Applications
Point-of-load applications
Industrial power
Sensitive RF applications
The MIC69101/103 is offered in a tiny 10-pin 3mm x 3mm
MLF® package and has an operating temperature range of
–40°C to +125°C.
Datasheets and support documentation can be found on
Micrel’s web site at: www.micrel.com.
___________________________________________________________________________________________________________
Typical Application
Fixed 1.8V Regulator w/Flag Error
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Adjustable Regulator
Super ßeta PNP is a registered trademark of Micrel, Inc.
Micrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com
December 2008
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Micrel, Inc.
Ordering Information
Part Number
MIC69101-1.8YML
MIC69103YML
Nominal
Output Voltage
1.8V
Adj.
Junction
Temperature Range
–40° to +125°C
–40° to +125°C
Package
10-Pin 3x3 MLF®
10-Pin 3x3 MLF®
MIC69101/103
Lead Finish
Pb-Free
Pb-Free
Pin Configuration
FLG 1
NC 2
GND 3
NC 4
NC 5
10 ADJ/SNS
9 VOUT
8 NC
7 VIN
6 EN
10-Pin 3mm x 3mm MLF® (ML)
Pin Description
Pin Number
1
2, 4, 5, 8
3 (EP)
6
7
9
10 (Adj)
10 (Fixed)
Pin Name
FLG
NC
GND
EN
VIN
VOUT
ADJ
SNS
Pin Function
Error Flag (Output): Open collector output. Active low indicates an output fault
condition.
Not internally connected.
Ground (exposed pad is recommended to connect to ground on MLF®).
Enable (Input): CMOS compatible input. Logic high = enable,
logic low = shutdown. Do not leave pin floating.
Input voltage which supplies current to the output power device.
Regulator Output.
Adjustable regulator feedback input. Connect to resistor voltage divider.
Sense pin, connect to output for improved voltage regulation.
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Micrel, Inc.
MIC69101/103
Absolute Maximum Ratings(1)
Supply Input Voltage (VIN)...................................................6V
Logic Input Voltage (VEN, VLQ)...................................0V to VIN
Power Dissipation (PD) ............................. Internally Limited(3)
Flag ......................................................................................6V
Storage Temperature (TS)........................... –65°C to +125°C
ESD(4) .................................................................................2kV
Operating Ratings(2)
Supply Voltage (VIN) ..........................................1.65V to 5.5V
Enable Input Voltage (VEN)....................................... 0V to VIN
Junction Temperature (TJ).................... –40°C TJ +125°C
Package Thermal Resistance
MLF® (qJA)............................................................. 60°C/W
Electrical Characteristics(4)
TA = 25°C with VIN = VOUT + 0.5V; bold values indicate –40°C< TJ < +125°C; IOUT = 10mA; COUT 4.7µF ceramic, unless otherwise noted.
Parameter
Output Voltage Accuracy (Fixed)
Output Voltage Accuracy (Adj)
Feedback Pin Current
Output Voltage Line Regulation
(Note 5)
Output Voltage Load Regulation
VIN – VO; Dropout Voltage
(Note 6)
Ground Pin Current
Ground Pin Current in Shutdown
Current Limit
Start-up Time
Thermal Shutdown
Enable Input
Conditions
Over temperature range
VIN = VOUT +1.0V to 5.5V
For VOUT 0.65V, VIN = 1.65 to 5.5V
IL = 10mA to 1A
IL = 0.5A
IL = 1.0A
IL = 10mA
IL = 0.5A
IL = 1.0A
VEN = 0V
VOUT = 0V
VEN = VIN
Min
–2
0.49
Typ
0.5
0.21
±0.1
Max
+2
0.51
1
±0.3
±0.25
150 300
215 500
1.1
4.7
11 20
1
1.2 1.95
10 150
165
Units
%
V
µA
%/V
%
mV
mV
mA
mA
mA
µA
A
µs
°C
Enable Input Threshold
Enable Pin Input Current
Flag Output
IFLG(LEAK)
VFLG(LO)
VFLG
Regulator enable
Regulator shutdown
VIL 0.2V (Regulator shutdown)
VIH 0.8V (Regulator enable)
Flag Output Leakage Current (Flag Off)
Output Logic-Low Voltage (undervoltage condition),
IL = 5mA
Threshold, % of VOUT below nominal (falling)
Hysteresis
0.8 0.6
0.005
7
0.2
0.05
150
7.5 10
2
14
V
V
µA
µA
µA
mV
%
%
Notes:
1. Exceeding the absolute maximum rating may damage the device.
2. The device is not guaranteed to function outside its operating rating.
3. The maximum allowable power dissipation of any TA (ambient temperature) is (PD(max) = TJ(max) – TA) / qJA. Exceeding the maximum allowable power
wwwd.isDsaiptaatSiohneweti4ll Ure.scuolmt in excessive die temperature and the regulator will go into thermal shutdown.
4. Specification for packaged product only.
5. Minimum input for line regulation test is set to VOUT + 1V relative to the highest output voltage.
6. Dropout voltage is defined as the input-to-output differential at which the output voltage drops 2% below its nominal value measured at 1V differential.
For outputs below 1.65V, dropout voltage is considered the input-to-output voltage differential with the minimum input voltage of 1.65V. Minimum
input operating voltage is 1.65V.
December 2008
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Micrel, Inc.
Typical Characteristics
Power Supply
Rejection Ratio
70
60
50
40
30
20
VIN = 3.3V
10 VOUT = 1.8V
IOUT = 0.5A
0 1K 10K
FREQUENCY (Hz)
2.00
1.95
1.90
1.85
1.80
1.75
1.70
1.65
1.60
Output Voltage
vs. Temperature
VIN = VOUT + 1V
VOUT = 1.8V
COUT = 10µF
IOUT = 10mA
20 40 60 80
TEMPERATURE (°C)
Ground Current
vs. Temperature
20
18
VIN = VOUT + 1V
VOUT = 1.8V
16
14
1A COUT = 10µF
12
10
8
6
4 0.5A
2
0 20 40 60 80
TEMPERATURE (°C)
Current Limit
vs. Temperature
4.0
3.5
3.0
2.5
2.0
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1.0 VIN = 2.8V
0.5
VOUT = 1.8V
COUT = 10µF
0 20 40 60 80
TEMPERATURE (°C)
December 2008
Dropout Voltage
vs. Output Current
400
350
300
250
200
150
100
50
VOUT = 1.8V
COUT = 10µF
1000 300 500 700 900
OUTPUT CURRENT (mA)
Outpout Voltage
vs. Input Voltage
2.0
1.8
1.6
1.4 0.5A
1.2 1A
1.0
0.8
0.6
0.4
0.2
VOUT = 1.8V
COUT = 10µF
00 0.4 0.8 1.2 1.6 2.0 2.4 2.8
INPUT VOLTAGE (V)
Enable Threshold
vs. Temperature
1.0
0.9
0.8
0.7
0.6 ON
0.5 OFF
0.4
0.3 VIN = 2.8V
0.2 VOUT = 1.8V
0.1
COUT = 10µF
IOUT = 100mA
0 20 40 60 80
TEMPERATURE (°C)
MIC69101/103
400
350
300
250
200
150
100
50
0
10
9
8
7
6
5
4
3
2
1
0
1.900
1.875
1.850
1.825
1.800
1.775
1.750
1.725
1.700
Dropout Voltage
vs. Temperature
IOUT=1A
IOUT=0.5A
VOUT = 1.8V
COUT = 10µF
20 40 60 80
TEMPERATURE (°C)
Ground Current
vs. Output Current
VIN = 2.8V
VOUT = 1.8V
COUT = 10µF
0.5 0.7
OUTPUT CURRENT (A)
Load Regulation
VIN = 2.8V
VOUT = 1.8V
COUT = 10µF
0.4 0.6
OUTPUT CURRENT (A)
4 M9999-121908-B



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