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RT9238 Ver la hoja de datos (PDF) - Richtek Technology
Número de pieza
componentes Descripción
Lista de partido
RT9238
VRM8.5 PWM and Triple Linear Power System Controller
Richtek Technology
RT9238 Datasheet PDF : 24 Pages
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RT9238
Preliminary
Ordering Information
RT9238
Package type
S : SOP-28
Operating temperature range
C: Commercial standard
Typical Application Circuit
L1
5V
R1
1µH
+
C1
12V
2000µF
10
VAUX
VTT
V
OUT2
1.2V
VTTPG
Q3
PHD3055E
+
C5
R6
1000µF
1K
AGP
V
OUT3
1.5V
MCH
1V.
O
8
U
V
T4
Q4
PHD3055E
+
C9
560µF
C8
1µF
Q5
2SD1802
+
C11
C10
560µF
1µF
C14
Z1
1µF
15V
28
VCC
FIX
2
FIX
23
OCSET1
PGOOD
8
UGATE1
27
1
DRIVE2 PHASE1 26
11
VSEN2 LGATE1 25
C6
1µF
RT9238
PGND
24
9
VTTPG
FB1
22
16
VAUX
VDAC
21
+
C15
10µF
ICOMP
20
18
DRIVE3
VID25
7
6
19
15
14
VSEN3
VID0
VID1
VID2
VID3
FAULT/VID4
5
4
3
10
DRIVE4
SS24
12
VSEN4
SS13
13
GND
17
C2
1000pF
R2
1K
Q1
PHB83N03LT
L2; 1.8µH
Q2
PHB95N03LT
R6
1K
VID25
VID0
VID1
VID2
VID3
FAULT
C16
10nF
C12
0.1µF
C13
0.1µF
PGOOD
R3
10K
+
C3
8000µF
VCORE
V
OUT1
C4
VRM8.5
1µF
C17
1µF
* C17 near the FB1 pin
as close as possible
Fig.1 VRM 8.5 Power Solution
www.richtek-ic.com.tw
2
DS9238-01 July 2001
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