RT6220
Typical Application Circuit
R
B
2.2
V
IN
1
10
BOOT
SW
VIN
EN
5.2V to 23V
C
10µF /
25V x 2
IN
C
B
RT6220
0.1µF / 50V
13
L
8, 9, 15, 16
V
OUT
2.2µH
C
22µF /
6.3V x 3
5V/6A
C
OUT
FF
R
5.1
BYP
R1
22k
7
12
VOUT
FB
V
3
SYS
22pF
(Optional)
VBYP
5V
C
BYP
R2
3k
2.2µF / 10V
R
100k
PGOOD
2
PGND
AGND
4
PGOOD
VCC
V
CC
11
C
VCC
5, 6, 14
2.2µF / 10V
Figure 1. Typical Application Circuit for VOUT = 5V
R
B
2.2
V
IN
1
13
3
10
BOOT
SW
VIN
4.5V to 23V
C
10µF /
25V x 2
IN
C
B
RT6220
0.1µF / 50V
L
EN
8, 9, 15, 16
V
OUT
2.2µH
R
5.1
3.3V/6A
BYP
C
C
OUT
22µF /
6.3V x 3
FF
R1
162k
7
12
V
SYS
5V
VOUT
FB
VBYP
4.7pF
(Optional)
C
BYP
2.2µF / 10V
R2
R
100k
PGOOD
2
36k
PGND
AGND
4
PGOOD
VCC
V
CC
11
5, 6, 14
C
VCC
2.2µF / 10V
Figure 2. Typical Application Circuit for VOUT = 3.3V
R
B
2.2
V
IN
1
13
3
10
BOOT
SW
VIN
4.5V to 23V
C
10µF /
25V x 2
IN
C
B
RT6220
0.1µF / 50V
L
8, 9, 15, 16
V
OUT
Chip Enable
EN
1µH
1V/6A
C
C
22µF /
6.3V x 4
FF
OUT
C
0.1µF
R1
20k
EN
7
12
VOUT
FB
22pF
(Optional)
R
5.1
BYP
V
SYS
5V
R2
VBYP
R
PGOOD
100k
30k
C
BYP
2.2µF / 10V
4
PGOOD
VCC
V
CC
2
11
PGND
AGND
C
VCC
5, 6, 14
2.2µF / 10V
Figure 3. Typical Application Circuit for VOUT = 1V
Copyright 2019 Richtek Technology Corporation. All rights reserved.
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is a registered trademark of Richtek Technology Corporation.
www.richtek.com
8
DS6220-10 December 2019
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
