English
Language : 

LP2950 Datasheet, PDF (6/26 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators
Electrical Characteristics (Note 2) (Continued)
Parameter
Output Voltage
All Voltage Options
Output Voltage
Temperature
Coefficient
Line Regulation
(Note 14)
Load Regulation
(Note 14)
Dropout Voltage
(Note 5)
Ground
Current
Dropout
Ground Current
Current Limit
Thermal Regulation
Output Noise,
10 Hz to 100 kHz
8-pin Versions Only
Reference
Voltage
Reference
Voltage
Feedback Pin
Bias Current
Reference Voltage
Conditions
(Note 2)
Temperature
Range
100µA ≤ IL ≤
100mA
TJ ≤ TJMAX
(Note 12)
(VONOM + 1)V ≤
Vin ≤ 30V (Note
15)
100µA ≤ IL ≤
100mA
IL = 100µA
IL = 100mA
IL = 100µA
IL = 100mA
Vin = (VONOM −
0.5)V
IL = 100µA
Vout = 0
(Note 13)
CL = 1µF (5V
Only)
CL = 200µF
CL = 3.3µF
(Bypass = 0.01µF
Pins 7 to 1
(LP2951)
(Note 7)
(Note 12)
LP2951
Tested
Typ
Limit
(Notes 3, 16)
4.94
LP2950AC-XX
LP2951AC-XX
Tested Design
Typ Limit Limit
(Note 3) (Note 4)
4.94
LP2950C-XX
LP2951C-XX
Tested Design
Typ Limit Limit
(Note 3) (Note 4)
4.9
Units
V min
5.075
5.0
5.0
4.925
5.075
5.0
4.925
5.12 V max
4.88 V min
20
120
20
100 50
150 ppm/˚C
0.03
0.1
0.03 0.1
0.04 0.2
% max
0.5
0.2
0.4 % max
0.04
0.1
0.04 0.1
0.1 0.2
% max
0.3
0.2
0.3 % max
80
80
80
mV max
50
150
50
150 50
150 mV max
450
450
450
mV max
380
600
380
600 380
600 mV max
75
120
75 120
75 120
µA max
140
140
140 µA max
8
12
8
12
8
12
mA max
14
14
14 mA max
110
170
110 170
110 170
µA max
200
200
200 µA max
160
200
160 200
160 200
mA max
220
220
220 mA max
0.05
0.2
0.05 0.2
0.05 0.2
%/W
max
430
430
430
µV rms
160
160
160
µV rms
100
100
100
µV rms
LP2951
1.235
1.25
1.26
1.22
1.2
1.27
1.19
20
40
60
20
LP2951AC-XX
1.235 1.25
1.26
1.22
1.2
1.27
1.19
20
40
60
20
LP2951C-XX
1.235 1.26
1.27
1.21
1.2
1.285
1.185
20
40
60
50
V max
V max
V min
V min
V max
V min
nA max
nA max
ppm/˚C
www.national.com
6