LP2950 Datasheet, PDF (7/13 Pages) National Semiconductor (TI) – Series of Adjustable Micropower Voltage Regulators

TYPICAL APPLICATIONS
LP2950/LP2951
1.8
5
1.6
4
2
1.4
0
1.2
-2
1.0
~~
1
1.25W
0.8
0
0.6
-75 -50 -25 0 25 50 75 100 125 150
TEMPERATURE (¼C)
-1
0
10
20
30
40
TIME (µs)
Shutdown Threshold Voltage
Thermal Response
3.5
3.0
2.5
C_L = 220µF
2.0
C_L = 3.3µF
1.5
CBYP = 0.1µF
I_L = 100mA
C_L = 1µF
1.0
0.5
0.0
50
10 ²
10 ³
10 ⁴
10 ⁵
FREQUENCY (Hz), C BYP=0.1uF
Output Noise
30
25
20
15
10
T_J = 150 ¼C
5
I_L = 100µA
I_L = 1mA
0
~~
10
5
0
T_J = 125 ¼C
I_L = 100µA
-5
-10
5
10
15
20
25
30
INPUT VOLTAGE (V)
Line Regulation
80
I_L = 50µA
70
60
I_L = 100mA
50
40
C_L = 1µF
30
V _IN = 6V
V _OUT = 5V
20
10
10 ¹
10 ²
10 ³
10 ⁴
10 ⁵
10 ⁶
FREQUENCY (Hz)
Ripple Rejection
Rev. 8/10/01
LP2950/51 100mA Low Dropout Voltage Regulators
7
©Copyright 2001 Sipex Corporation