RT9209 RICHTEK [Richtek Technology Corporation], RT9209 Datasheet - Page 2

• Manufacturer Part Number: RT9209
• Description: Synchronous Buck PWM DC-DC with Enable & PGOOD
• Manufacturer: RICHTEK [Richtek Technology Corporation]

RT9209/A
Typical Application Circuit
www.richtek.com
2
1uF
C3
1uF
C3
120
1
2
3
4
R1
FB
GND
120
VCC
LGATE
1
2
3
4
R1
12V
RT9209/A
FB
GND
VCC
LGATE
RT9209/A
PGOOD
UGATE
BOOT
R3
10
PGOOD
UGATE
SS
BOOT
Figure B. RT9209/A Booted from 12V
1uF
Figure A. RT9209/A Booted from 5V
C5
SS
250
8
7
6
5
R2
8
7
6
5
250
R2
0.1uF
C2
0.1uF
10K
C2
R3
PGOOD
10K
R4
D1
PGOOD
0.1uF
C
BOOT
A
MU
ML
A
ML
MU
5uH
L1
470uF
C1
1000uF
5uH
L1
470uF
C1
C4
DS9209/A-08 March 2007
1000uF
C4
5V
5V
VOUT
VOUT