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LM2954 Datasheet(PDF) 5 Page - Unisonic Technologies

Part No. LM2954
Description  300 mA LOW-DROPOUT VOLTAGE REGULATOR
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Maker  UTC [Unisonic Technologies]
Homepage  http://www.utc-ic.com
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LM2954 Datasheet(HTML) 5 Page - Unisonic Technologies

   
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LM2954
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
5 of 7
www.unisonic.com.tw
QW-R102-002.G
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
VALUE
UNIT
Supply Voltage
VCC
-0.3 ~ +30
V
Feedback Voltage
VFB
-1.5 ~ +30
V
Shutdown Voltage
VSHDN
-0.3 ~ +30
V
Comparator Output Voltage
VOUT
-0.3 ~ +30
V
Junction Temperature
TJ
+125
°C
Operating Temperature
TOPR
-40 ~ +85
°C
Storage temperature
TSTG
-40 ~ +150
°C
Note: 1.Absolute maximum ratings are those values beyond which the device which the device could be permanently
damaged. Absolute maximum ratings are stress ratings only and functional device operation is not implied.
2.The device is guaranteed to meet performance specification within 0°C~+70°C operating temperature range
and assured by design from -20°C~+85°C, characteristic and correlation with static process control.
ELECTRICAL CHARACTERISTICS(T
J=25°C, VIN=6V, IL=100μA, CL=1μF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN.
TYP.
MAX.
UNIT
LM2954-3.3
3.23
3.3
3.37
Output Voltage
LM2954-5.0
VOUT
TJ=25°C
4.90
5.0
5.10
V
Output Voltage Temperature Coefficient
TCVO
20
100
ppm/
°C
Line Regulation
△VOUT 6V≦VIN≦30V
0.1
0.2
Load Regulation
△VOUT 100μA≦IL≦300 mA
0.2
0.5
%
IL=100mA
400
Dropout Voltage
VD
IL=200mA (note 2)
380
450
600
mV
IL=100μA
0.075
0.12
0.23
Ground Current
IGND
IL=200mA
8
12
14
mA
Dropout Ground Current
ID
VIN=4.5V,IL=100μA
230
μA
Current Limit
ILIMIT
VOUT=0
300
mA
CL=1μF
430
CL=200μF
160
Output Noise (10Hz to 100KHz)
eN
CL=3.3μF
100
μV
LM2954-ADJ For 8-Pin Version Only
Reference Voltage
VREF
1.22
1.235
1.25
V
Reference Voltage
VREF
VREF≤VOUT≤(VIN-1V),
2.3V
≤V
IN≤18V,
100
μA≤I
L≤100mA, TJ≤TJMAX
1.19
1.27
V
Feedback Pin Bias Current
IB(FB)
20
40
nA
Reference Voltage Temperature
Coefficient
TCVREF
50
ppm/
°C
Feedback Bias Current Temperature
Coefficient
TCIO
0.1
nA/
°C


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