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參數(shù)資料
| 型號： | RT9209 |
| 英文描述： | Step-down DC/DC Converter |
| 中文描述： | 降壓直流/直流轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/16頁 |
| 文件大?。?/td> | 315K |
| 代理商： | RT9209 |
RT9203/A
Preliminary
www.richtek.com
4
DS9203/A-04 May 2003
Layout Placement
Layout Notes
1. Put C1 & C2 to be near the MU drain and ML source nodes.
2. Put RT9203/A to be near the C
OUT
3. Put C
BOOT
as close as to BOOT pin
4. Put C
VCC
as close as to VCC pin
Function Block Diagram
6.0V
Regulator
Logic
on Reset
Soft Start
0.8V
Reference
Oscillator
_
+
_
UVP
_
_
OVP
VCC
FB
GND
BOOT
UGATE
LGATE
VCC
Error
0.8V
1V
+
_
UVP
_
LDO
+
+
+
+
PWM
SS
DRV
FBL
0.5V
V
CC
Control
Power
300kHz
+
_
Amp
+
GND
BOOT
RT9203/A
VCC
1
μ
1000
μ
F
+
G
S
MU
D
G
S
ML
D
C
BOOT
0.1
μ
F
5
μ
H
1
μ
F
470
μ
F
GND Return
C
VCC
C
OUT
L
C1
C2
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