LT1120 Linear Technology, LT1120 Datasheet - Page 9

• Manufacturer Part Number: LT1120
• Description: Micropower Regulator with Comparator and Shutdown
• Manufacturer: Linear Technology

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