rt9206 Richtek Technology Corporation, rt9206 Datasheet - Page 2

• Manufacturer Part Number: rt9206
• Description: High Efficiency, Synchronous Buck With Dual Linear Controllers
• Manufacturer: Richtek Technology Corporation

Typical Application Circuit
RT9206
www.richtek.com
2
V
V
3.3V
V
V
Note : R
OUT2
OUT1
3.3V
OUT2
OUT1
10uF
C6
10uF
C6
BOOT
10uF
is a must to suppress ringing spike.
C7
2.5V
10uF
V
C7
2.5V
OUT3
V
OUT3
R11
5.6k
Q4
Q4
R11
5.6k
33nF
C14
Q3
4.3K
33nF
R12
C14
Q3
8.2K
R12
C16 500pF
C16 500pF
R3 11k
390pF
C13
220pF
C13
R3 11k
Figure 1. Typical Application for 12V Input
Figure 2. Typical Application for 24V Input
1uF
C1
R10
51k
PGOOD
1uF
C1
R10
51k
PGOOD
4.7uF
1
2
3
4
5
6
7
8
C
R1 10
1uF
C
1
2
3
4
5
6
7
8
LDRV1
VDD
LDRV2
LFB2
COMP
FB
PGOOD
SS/EN
SS
R1 10
SS
LDRV1
VDD
LDRV2
LFB2
COMP
FB
PGOOD
SS/EN
C15 500pF
R2 11k
RT9206CS
RT9206CS
C15 500pF
R2 11k
Q5
Q5
UGATE
LGATE
BOOT
UGATE
LGATE
LFB1
VINT
GND
BOOT
PHS
EN
LFB1
VINT
GND
PHS
RT
EN
RT
16
15
14
13
12
11
10
9
16
15
14
13
12
11
10
9
15
D1
15
0
D1
R
R14
1N4148
C8
0
R
3.3k
R13
0
R14
BOOT
R
R4
1N4148
C8
RT
R
3.3k
R13
0
R4
BOOT
RT
4.7uF
4.7uF
C9
1uF
C9
1uF
1uF
Q1
Si4800BDY
Q2
C2
1uF
Q1
Q2
C2
Si4800BDY
4.7uH
L1
33uH
L1
DS9206-11 March 2007
1000uF
1000uF
C10
C10
560
R8
R9
220uF
3k
220uF
C3
1000uF
C3
C17
560
R8
R9
3k
C11
1uF
C11
1uF
V
12V
V
V
OUT1
5V
24V
IN
OUT1
V
5V
IN