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RT9227APS Просмотр технического описания (PDF) - Richtek Technology
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Компоненты Описание
Список матч
RT9227APS
Advanced PWM and Dual Fixed Linear Power Controller
Richtek Technology
RT9227APS Datasheet PDF : 8 Pages
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RT9227A
Preliminary
Typical Application Circuit
12V
15A
1uH
5V
GND
4*1000uF
10
2*1uF
3.3V
V
OUT3
1.5V
V
OUT2
2.5V
RFD3055
1000uF
270uF
1uF
1
VCC
12
VIN2
OSET1
20
1000uF
PGOOD
7
15
GATE3
16
FB3
24
UGATE1
PHASE2
23
RT9227A
13
VOUT2 LGATE1 22
11
FB2
PGND
21
1000pF
1.21K
PHB83N03LT
PHB95N03LT
6
VID0
5
VID1
4
VID2
3
VID3
2
VID4
19
VSEN1
FB1
18
FAULT
8
SS
9
GND
14
0.039uF
POWERGOOD
10K
3.5uH
4.99K
7*1000uF
V
OUT1
1.3V to 3.5V
0.68uF
732K
Function Block Diagram
VSEN1
OCSET1
VCC
FB3
GATE3
VIN2
VOUT2
FB2
FAULT
3.3V
-
0.3V
+
+
-
+
+
-
1.26V
-
110%
90%
115%
+
OC2
0.25A
-
Soft Start
& Fault Logic
VCC
11uA
5V
DACOUT
TTL D/A
Converter
(DAC)
+
-
+
-
+
Over Voltage
-
Power-On
3.3V
Reset (POR)
VCC
OC1
+
-
Inhibit
PWM
Comparator
+
+
PWM
-
Error
-
Amplifier
Gate
Control
Logic
VCC
Oscillator
Compensation
Lower
Drive
PGOOD
UGATE1
PHASE1
LGATE1
PGND
GND
SS
FB1
www.richtek.com
2
DS9227A-05 March 2007
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