RT6228A/B/C
Pin Configuration
(TOP VIEW)
AGND
PGOOD
ILMT
VCC
BYP
FB
AGND
PGOOD
8
7
6
5
2
4
AGND
PGOOD
VOUT
VOUT
ILMT
12 11 10
9
8
7
6
5
12 11 10
9
8
7
6
5
12 11 10
BOOT
LX
LX
1
2
EN
VIN
PGND
BOOT
LX
LX
1
2
EN
VIN
PGND
BOOT
LX
LX
VCC
9
VCC
LDO
BYP
CLK
1
EN
VIN
PGND
4
3
4
3
3
RT6228A
RT6228B
RT6228C
Simplified Application Circuit
RT6228A
PGOOD
V
IN
C
IN
V
CC
VCC
C
VCC
LX
C
FF
(Optional)
R
FF
(Optional)
FB
EN
PGND
AGND
BYP
C
BYP
R
BYP
(Optional)
V
BYP
R2
R1
C
OUT
V
ILMT
V
EN
R
EN
ILMT
EN
V
PGOOD
R
BOOT
C
BOOT
L
V
OUT
V
CC
V
IN
C
IN
RT6228B
PGOOD
BOOT
VIN
LX
VOUT
PGND
AGND
BYP
C
BYP
R
BYP
(Optional)
R
BOOT
C
BOOT
L
VCC
C
VCC
V
PGOOD
BOOT
VIN
V
OUT
V
ILMT
V
EN
R
EN
C
OUT
ILMT
V
BYP
V
SYS
D1
C1
D2
D3
C2
C3
D4
C4
V
CP
RT6228C
12
V
IN
C
IN
R
EN
6 EN
9 VCC
LX
2, 3
5
CLK
VIN
PGOOD 7
BOOT 1
R
BOOT
C
BOOT
L
C
OUT
V
OUT
V
PGOOD
V
EN
V
CC
VOUT 10
PGND
4
8
C
BUFF
C
VCC
V
LDO
C
LDO
11
LDO
AGND
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
www.richtek.com
2
DS6228A/B/C-02
September 2018
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
