FC8731 datasheet(3/11 Pages) FS

Part #	FC8731

Description	High-PSRR, Low-Noise, 300mA CMOS Linear Regulator with 3 Types of Output Select

PDF	11 Pages

Scroll/Zoom	100%

Manufacturer	FS [First Silicon Co., Ltd]

Direct Link	http://www.firstsilicon.co.kr/

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Pin Functions

Name

SOT-25

Function

Supply Voltage Input.

Require a minimum input capacitor of close to 2.2µF to ensure stability and

sufficient decoupling from the ground pin.

GND

Ground Pin.

Enable Input.

Enable the regulator by pulling the EN pin High. To keep the regulator on during

normal operation, connect the EN pin to VIN. The EN pin must not exceed VIN

under all operating conditions.

ADJ

Adjustable Control.

Connecting to GND to get output Voltage-A,

Connecting to VIN to get output Voltage-B,

Use external divider resistors to achieve desired output Voltage-C.

OUT

Output Voltage Feedback.

Functional Block Diagram

Fast

Start-up

Circuit

Current

Limit

Thermal

Protection

Error

Amp.

OUT

GND

Bandgap

Vout

select

ADJ

FIG.1. Functional Block Diagram of FC8731

FC8731

2018. 05. 03

3/11

Revision No : 1

FC8731 Datasheet(PDF) 3 Page - First Silicon Co., Ltd

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