RT5047A
Typical Application Circuit
L1
D1
10μF
SS14
VIN
C
IN1
C
BST
2x10μF
20μF/30μF
3
2
LX
BOOST
4
D3
SS14
VIN
C
IN2
1μF
D5
SS14
Max. 550mA
1
LNB
V
LNB
5
RT5047A
EN
D2
SS14
D4
SMDJ20A
C
0.1μF
LNB
8
6
TONE
SEL
GND
9 (Exposed Pad)
Note :
1. D2, D3, D4, D5 are used for surge protection.
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 © 2016 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5047A-01 November 2016
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
