RT9002C 데이터 시트보기 (PDF) - Richtek Technology

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RT9002C

Dual Low Dropout Regulator with Detector

Richtek Technology 

RT9002A/B/C

Functional Pin Description

Pin No. Pin Name

Pin Function

1 VIN1

Channel 1 Supply Input.

2 VOUT1 Channel 1 Output Voltage.

3 Cd

Delay Capacitor.

4 VIN2

Channel 2 Supply Voltage.

5 VOUT2 Channel 2 Output Input.

6 VDOUT Detector Output Voltage. (RT9002A = Active High, RT9002B and RT9002C = Active Low)

7 GND

Common Ground.

8 EN1

Chip Enable (Active High) for Channel 1.

Function Block Diagram

EN1

VREF

Shutdown

and

Logic Control

+

Error

Amplifier

MOS Driver

Current-Limit

and

Thermal

Protection

Cd

VDOUT

+

Error

Amplifier

VREF

MOS Driver

Current-Limit

and

Thermal

Protection

+

VD

Comparator

VIN1

VOUT1

VIN2

VOUT2

GND

www.richtek.com

2

DS9002ABC-04 April 2011

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