RT6228A/B/C
Typical Application Circuit
RT6228A
PGOOD 7
V
IN
4.5V to 23V
5
C
IN
10µF x 2
9 VCC
C
VCC
1µF
V
ILMT
V
EN
R
EN
1k
12
6
FB 10
4
PGND
AGND
8
C
BYP
1µF
R
BYP
(Optional)
V
BYP
BYP 11
BOOT 1
2, 3
R
BOOT
10
C
BOOT
0.1µF
L
1µH
C
FF
(Optional)
R
FF
(Optional)
ILMT
EN
R1
13k
R2
20k
V
OUT
1V/8A
V
PGOOD
VIN
LX
V
CC
C
OUT
22µF x 5
RT6228B
PGOOD 7
V
IN
4.5V to 23V
5
C
IN
10µF x 2
9 VCC
C
VCC
1µF
V
ILMT
V
EN
R
EN
1k
12
6
ILMT
EN
VIN
BOOT 1
R
BOOT
10
C
BOOT
0.1µF
L
1µH
V
PGOOD
V
CC
LX
VOUT
PGND
AGND
2, 3
10
4
8
C
BYP
1µF
V
OUT
3.3V/8A
C
OUT
22µF x 4
BYP 11
R
BYP
(Optional)
V
BYP
V
SYS
5V
D1
D2
C1
0.1µF
D3
C2
0.1µF
D4
C3
0.1µF
C4
0.1µF
V
CP
12V/10mA
RT6228C
12
V
IN
5.1V to 23V
5
C
IN
10µF x 2
R
EN
1k
C
VCC
1µF
V
LDO
3.3V/100mA
11
C
LDO
4.7µF
LDO
CLK
VIN
PGOOD 7
BOOT 1
R
BOOT
10
C
BOOT
0.1µF
L
1µH
C
BUFF
0.1µF
C
OUT
22µF x 4
V
OUT
5.1V/8A
V
PGOOD
V
EN
V
CC
6 EN
9 VCC
LX
2, 3
VOUT 10
PGND
AGND
4
8
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS6228A/B/C-02
September 2018
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
