RT5047A データシートの表示（PDF） - Richtek Technology
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RT5047A Datasheet PDF : 16 Pages
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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 1F 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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