RT5047A 查看數據表（PDF） - Richtek Technology

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比赛名单

RT5047A

Single Output LNB Supply and Control Voltage Regulator

Richtek Technology 

Typical Application Circuit

VIN

L1

10uH

D1

SS14

CIN1

2x10uF

CIN2

1uF

3.3V

R1

4.7kΩ

LX

VIN

BOOST

EN

TONE

SEL

LNB

RT5047A

FAULT

GND

RT5047A

CBST

20uF

/30uF

Max. 550mA

D3

SS14

D2

SS14

CLNB

0.1uF

D4

SMDJ20A

Note :

1. D2, D3, D4, are used for surge protection. The clamping voltage of D4 is 30V, the break down voltage must be

higher than 24V as recommended.

2. The capacitor C3 should not be less than 1F for the power stability.

3. EN, TONE and SEL are connected to microcontroller directly.

Copyright © 2015 Richtek Technology Corporation. All rights reserved.

DS5047A-00 March 2015

is a registered trademark of Richtek Technology Corporation.

www.richtek.com

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