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RT8239B Datasheet(PDF) 3 Page - Richtek Technology Corporation

Part # RT8239B
Description  High Efficiency, Main Power Supply Controller for Notebook Computers
PDF  24 Pages
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Manufacturer  RICHTEK [Richtek Technology Corporation]
Direct Link  http://www.richtek.com
Logo RICHTEK - Richtek Technology Corporation

RT8239B Datasheet(HTML) 3 Page - Richtek Technology Corporation

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RT8239A/B/C
3
DS8239A/B/C-06 October 2012
www.richtek.com
©
Copyright 2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
Typical Application Circuit
Figure 1. RT8239A NB Main Supply Typical Application Circuit
C8
3.3V
RT8239A
PHASE1
LGATE1
BOOT1
UGATE1
VIN
11
16
19
17
18
PHASE2
LGATE2
BOOT2
UGATE2
FB2
VIN
10µF
8
9
7
10
5
C6
R1
C2
0.1µF
5.5V to 25V
21 (Exposed Pad)
GND
N3
L2
C7
0.1µF
R5
N4
R6
6.5k
N1
L1
C4
C3
5V
0.1µF
R2
N2
R3
15k
R4
10k
R7
10k
FB1
1
BYP1
20
10µF
C1
ENLDO
12
R8
100k
R9
100k
ENTRIP2 4
ENTRIP1 2
LDO3 15
C9
4.7µF
LDO5 14
PGOOD 6
R10
100k
C10
5V Always On
TON
3
RTON
ENM
13
C5
1µF
Chip Enable
3.3V Always On
VOUT2
VOUT1
10µF



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