LP2950 Просмотр технического описания (PDF) - Unisonic Technologies
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LP2950 Datasheet PDF : 7 Pages
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LP2950/2951
LINEAR INTEGRATED CIRCUIT
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Supply Voltage
VCC
-0.3 ~ +30
V
Feedback Voltage
VFB
-1.5 ~ +30
V
Shutdown Voltage
Operation Junction Temperature
Storage Temperature
VSHDN
TJ
TSTG
-0.3 ~ +30
V
-40 ~ +125
°C
-65 ~ +150
°C
Note: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.
ELECTRICAL CHARACTERISTICS (TJ=25°C, VIN=6V, IL=100µA, CL=1µF, unless otherwise specified.)
For All Version:
PARAMETER
Output Voltage
Output Voltage
Output Voltage Temperature
Coefficient
Line Regulation
Load Regulation
Dropout Voltage
Ground Current
Dropout Ground Current
Current Limit
Output Noise (10Hz ~ 100KHz)
(Bypass=0.01µF pins 7 to 1
(LP2951))
SYMBOL
TEST CONDITION
MIN
VOUT
VOUT
TJ=25°C (Note 1)
VOUT×0.98
-25°C≦TJ≦+85°C(Note 1)
VOUT×0.98
100µA≦IL≦100mA, TJ≦TJ(max) VOUT×0.98
TYP
VOUT
VOUT
VOUT
MAX
VOUT×1.02
VOUT×1.02
VOUT×1.02
UNIT
V
V
V
TcVo
20
100 ppm/°C
ΔVOUT
ΔVOUT
VD
IG
ILIMIT
eN
6V≦VIN≦30V
100µA≦IL≦100 mA
IL=100µA
IL=100mA (Note 2)
IL=100µA
IL=100mA
VIN=4.5V,IL=100µA
VOUT=0
CL=1µF
CL=200µF
CL=3.3µF
0.03 0.1
0.2
%
0.04 0.1
0.2
%
50
80
150
380 450 600
mV
75
120 140
µA
8
12
14
mA
110 170 200
µA
160 200 220
mA
430
160
µV
100
For UTC LP2951 8-Pin Version Only
PARAMETER
SYMBOL
TEST CONDITION
Reference Voltage
Reference Voltage
VREF
VREF Over temperature(Note 4)
Feedback pin Bias Current
IFB
Reference Voltage Temperature
Coefficient
VREF(TC)
MIN TYP MAX
1.22 1.235 1.25
1.19
1.27
20
40
UNIT
V
V
nA
50
ppm/°C
Feedback Bias Current
Temperature Coefficient
Error Comparator
Output Leakage Current
Output Low Voltage
Threshold Voltage
Upper
Lower
Hysteresis
IFB(TC)
IO(LEAK)
VOL
VTHU
VTHL
VHYS
VOH=30V
VIN=4.5V, IOL=400µA
(Note 3)
(Note 3)
(Note 3)
0.1
nA/°C
1
µA
250
mV
3.2
%VO
7.6
%VO
15
mV
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 7
QW-R102-001,J
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