+V IN
100K
8
+V IN
______
ERROR
ERROR
5
1.2
4
to
2
9V
1
OUTPUT
V OUT
LP2951
+
SHUTDOWN
INPUT
3
R1
3.3µF
SD
.01µF
FB
GND
7
4
1.23V
V REF
R2
+V
IN
+V
IN
470kΩ
8
+V
______
ERROR
IN
5
V OUT
1
8
V OUT
470kΩ
+V
______
ERROR
IN
5
ERROR
*V
= V
1
IN
OUT
OUTPUT
LP2951
V OUT
+
3
R1
1µF
LP2951
SD
FB
GND
4
3
SHUTDOWN
INPUT
RESET
SD
7
FB
GND
7
4
R2
*MINIMUM INPUT-OUTPUT VOLTAGE RANGES FROM 40mV to 400mV.
DEPENDING ON LOAD CURRENT. CURRENT LIMIT IS TYPICALLY 150mA
Rev G
© 2008 Exar Corporation
LP2950-5ꢀ Low Dropout Linear Regulators
9
EXAR [ EXAR CORPORATION ]
