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零件编号
产品描述 (功能)
RT9221 查看數據表(PDF) - Unspecified
零件编号
产品描述 (功能)
生产厂家
RT9221
Programmable Synchronous PWM Buck Converter with 1.5V/2.5V Dual Low Dropout Linear Regulator Controller
Unspecified
RT9221 Datasheet PDF : 8 Pages
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RT9221
Typical Application Circuit
12V
5V
VID0
VID1
VID2
VID3
VID4
OVP
SHDN
PGOOD
5V
5V
C9
1000
µ
F
R13
R14 10
10
C1
+
R1 R2
0.1
µ
F
10K 10
C2
5
VCC
C14
1µF
CSP
9
1500
µ
Fx2
6
OVP
CSN
8
22
VID0
VSEN
17
21
VID1
20
VID2
19
VID3
PGOOD
VID4
7
18
BSTH
15
C4
0.1
µ
F
16
SHDN
DH
11
1
GND PGNDH
10
12
24
PGNDL
GATE2
DL
13
BSTL
14
2
GATE1 LDOV
23
4
LDOS2 LDOS1
3
RT9221
C13
1
µ
F
R3
C3
10K
0.1
µ
F
R4 R5
1.0K 2.32K
PHB83N03LT
Q1
R6
5m
Ω
L1
4µH
Q2
+
C5
PHB95N03LT
1500
µ
Fx4
RFD3055
Q3
R9
5
Ω
+ +C10
1000
µ
F
R8
5
Ω
Q4
RFD3055
C11
0.1
µ
F
+
C12
1000
µ
F
C8
0.1
µ
F
VCC_CORE
C6
0.1
µ
F
GND
VLIN1
+
C7
1000
µ
F
VLIN2
www.richtek-ic.com.tw
6
DS9222-05 May 2001
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