LP2950 Datasheet, PDF (2/13 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators

LP2950/51
ABSOLUTE MAXIMUM RATINGS
Power Dissipation.....................................Internally Limited
Lead Temp. (Soldering, 5 Seconds)............................260¡C
Storage Temperature Range ......................... -65¡ to +150¡C
Operating Junction Temperature Range -40C to +125C
Input Supply Voltage..................................... -0.3V to +30V
Feedback Input Voltage................................................ -1.5V to +30V
Shutdown Input Voltage............................................... -0.3V to +30V
Error Comparator Output ............................................. -0.3V to +30V
ESD Rating .........................................................................2kV Min
ELECTRICAL CHARACTERISTICS V_IN=6V, I_O=100µA, C_OUT=1µF (Note 2) T_A=25C, unless otherwise noted.
PARAMETER
CONDITIONS
LP2950AC
LP2951AC
Min. Typ. Max.
LP2950C
LP2951C
Min. Typ. Max.
UNITS
3.3 V Versions
Output Voltage
TJ = 25¡C
3.284 3.3 3.317 3.267 3.3 3.333
V
-25¡C ≤TJ ≤85¡C
3.267 3.3 3.333 3.251 3.3 3.350
3.260 3.3 3.340 3.234 3.3 3.366
Full Operating Temperature
Output Voltage
100 µA ≤IL ≤100 mA
3.254 3.3 3.346 3.221 3.3 3.379
V
TJ ≤TJMAX
5 V Versions
Output Voltage
TJ = 25¡C
4.975 5.0 5.025 4.950 5.0 5.050
V
-25¡C ≤TJ ≤85¡C
4.950 5.0 5.050 4.925 5.0 5.075
Full Operating Temperature
4.940 5.0 5.060 4.900 5.0 5.100
Output Voltage
100 µA ≤IL ≤100 mA
4.925 5.0 5.075 4.880 5.0 5.120
V
TJ ≤TJMAX
All Voltage Options
Output Voltage
Temperature Coefficient
Line Regulation (Note 3)
Load Regulation (Note 3)
(Note 1)
6V ≤VIN ≤30V (Note 4)
100 µA ≤IL ≤ 100 mA
20
120
0.03 0.1
0.04 0.1
50
150
0.04 0.2
0.1
0.2
ppm/¡C
%
%
Dropout Voltage
(Note 5)
Ground Current
Current Limit
Thermal Regulation
IL = 100 µA
IL = 100 mA
IL = 100 µA
IL = 100 mA
VOUT = 0
50
80
380 450
150 170
8
12
150 200
0.05 0.2
50
80
380 450
150 170
8
12
150 200
0.05 0.2
mV
mV
µA
mA
mA
%/W
Output Noise,
10Hz to 100KHz
8-Pin Versions only
Reference Voltage
CL = 1µF
CL = 200 µF
CL = 3.3 µF, Bypass = 0.01µF
from Pin 7 to Pin 1 (LP2951)
430
430
160
160
100
100
LP2951AC
LP2951C
1.220 1.235 1.250 1.210 1.235 1.260
µV rms
µV rms
µV rms
V
Reference Voltage
Over Temperature (Note 6)
1.190
1.270 1.185
1.285
V
Feedback Pin Bias
Current
40 60
40
60
nA
Rev. 8/10/01
LP2950/51 100mA Low Dropout Voltage Regulators
2
©Copyright 2001 Sipex Corporation