Datasheet LT1120 (Analog Devices) - 9
| Manufacturer | Analog Devices |
| Description | Micropower Regulator with Comparator and Shutdown |
| Pages / Page | 12 / 9 — TYPICAL APPLICATIO S. 5V Regulator. Regulator with Improved Transient … |
| File Format / Size | PDF / 138 Kb |
| Document Language | English |
TYPICAL APPLICATIO S. 5V Regulator. Regulator with Improved Transient Response. Battery-Backup Regulator
Model Line for this Datasheet
Text Version of Document
LT1120
U TYPICAL APPLICATIO S 5V Regulator Regulator with Improved Transient Response
V 5 4 IN > 5.2V 5 4 VIN VOUT 5V V V 5V I IN > 5.2V IN VOUT Q = 40μA LT1120 0.001μF 1M LT1120 0.001μF 1M + + + 2 2 10μF FB 25μF FB 25μF GND GND 0.001μF 1M 1 1M 1 22k 1120 TA06 1120 TA07
Battery-Backup Regulator
VOUT 5V 5 4 MAIN BATTERY 4 5 VIN VOUT V V OUT IN POWER INPUT + INPUT LT1120 0.001μF 1M 10μF LT1120 2 2 FB FB GND 50k GND 1 1 1M INTERNAL PARASITIC 1120 TA08 DIODES OF LT1120 V V IN OUT
5V Regulator with Feedback Shutdown
V 5 4 5V IN > 5.2V VIN VOUT IQ = 40μA + OUT 10μF LT1120 0.001μF 1M 2 FB GND 1M 1 LOGIC 2N3904* INPUT NC 1120 TA09 * TRANSISTOR USED BECAUSE OF LOW LEAKAGE CHARACTERISTICS. TO TURN OFF THE OUTPUT OF THE LT1120 FORCE FB (PIN 2) > 2.5V. 1120fd 9
U TYPICAL APPLICATIO S 5V Regulator Regulator with Improved Transient Response
V 5 4 IN > 5.2V 5 4 VIN VOUT 5V V V 5V I IN > 5.2V IN VOUT Q = 40μA LT1120 0.001μF 1M LT1120 0.001μF 1M + + + 2 2 10μF FB 25μF FB 25μF GND GND 0.001μF 1M 1 1M 1 22k 1120 TA06 1120 TA07
Battery-Backup Regulator
VOUT 5V 5 4 MAIN BATTERY 4 5 VIN VOUT V V OUT IN POWER INPUT + INPUT LT1120 0.001μF 1M 10μF LT1120 2 2 FB FB GND 50k GND 1 1 1M INTERNAL PARASITIC 1120 TA08 DIODES OF LT1120 V V IN OUT
5V Regulator with Feedback Shutdown
V 5 4 5V IN > 5.2V VIN VOUT IQ = 40μA + OUT 10μF LT1120 0.001μF 1M 2 FB GND 1M 1 LOGIC 2N3904* INPUT NC 1120 TA09 * TRANSISTOR USED BECAUSE OF LOW LEAKAGE CHARACTERISTICS. TO TURN OFF THE OUTPUT OF THE LT1120 FORCE FB (PIN 2) > 2.5V. 1120fd 9
