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RT8239B Datasheet(PDF) 4 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) 4 Page - Richtek Technology Corporation

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RT8239A/B/C
4
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.
Figure 2. RT8239B/C NB Main Supply Typical Application Circuit
RT8239B/C
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
C8
3.3V
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
Off
On
LDO3 15
C9
4.7µF
LDO5 14
PGOOD 6
R10
100k
C10
5V Always On
TON
3
RTON
C11
0.1µF
C12
0.1µF
SECFB
13
R11
200k
R12
39k
VCP
C13
0.1µF
C14
0.1µF
C5
1µF
C15
3.3V Always On
VOUT1
VOUT2
10µF



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