rt9212 Richtek Technology Corporation, rt9212 Datasheet - Page 2

• Manufacturer Part Number: rt9212
• Description: Dual Synchronous Buck Dc-dc Linear Power Controller
• Manufacturer: Richtek Technology Corporation

V
2.5V
Typical Application Circuit
OUT3
www.richtek.com
2
RT9212
RESET2
100uF
255
120
R3
R4
C4
3.48k
Q5
R1
3.3V
RESET1
2SD1802
1nF
470uF
C5
C1
3.48k
R6
1k
Q6
R2
1.25k
100pF
C6
R7
V
2.5V/3.3V/5V
1nF
IN
C2
R5
6.34k
5.6nF
C7
100
15
21
20
16
17
R8
15nF
C8
6
5
1uF
C3
VCC
OCSET1/SD
OCSET2/SD
DRV
FBL
COMP1
FB1
RT9212
GNDA
9
UGATE1
UGATE2
PHASE1
PHASE2
LGATE1
LGATE2
PGOOD
PGND1
PGND2
BOOT1
PVCC1
BOOT2
Preliminary
FB2
10k
R9
19
2
1
3
22
23
24
11
12
10
14
13
18
1N4148
1N4148
D1
D2
C9
0.1uF
C11
0.1uF
V
5V
CC
V
5V
CC
PHKD6N02LT
PHKD6N02LT
V
2.5V/3.3V/5V
Q3
Q4
IN
Q1
Q2
1uH
1uH
C10
L2
470uF
L1
C16 to C17
C12 to C15
DS9212-05 March 2007
2.5V/3.3V/5V
105
120
R10
R11
V
IN
( >V
V
V
1.8V
1.5V
OUT1
OUT2
OUT1
& V
OUT2
)