Datasheet

9
LT1120
1120fc
TYPICAL APPLICATIO S
U
+
V
IN
V
OUT
FB
GND
LT1120
4
0.001µF1M
1M
10µF
LOGIC
INPUT
5V
OUT
NC
2N3904*
V
IN
> 5.2V
I
Q
= 40µA
1120 TA09
2
1
5
* TRANSISTOR USED BECAUSE OF LOW LEAKAGE CHARACTERISTICS.
TO TURN OFF THE OUTPUT OF THE LT1120 FORCE FB (PIN 2) > 2.5V.
5V Regulator with Feedback Shutdown
Battery-Backup Regulator
+
V
IN
V
OUT
FB
GND
LT1120
4
0.001µF1M
50k
1M
10µF
V
OUT
5V
BATTERY
INPUT
MAIN
POWER
INPUT
1120 TA08
2
1
5
V
IN
V
OUT
FB
GND
LT1120
5
1
4
2
INTERNAL PARASITIC
DIODES OF LT1120
V
OUT
V
IN
5V Regulator
Regulator with Improved Transient Response
+ +
V
IN
V
OUT
FB
GND
LT1120
4
0.001µF1M
1M
25µF
5V
V
IN
> 5.2V
I
Q
= 40µA
1120 TA06
10µF
2
1
5
+
V
IN
V
OUT
FB
GND
LT1120
4
0.001µF
0.001µF
1M
1M
22k
25µF
5VV
IN
> 5.2V
1120 TA07
2
1
5