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