RT4722C
Typical Application Circuit
VBAT
(2.9V to 4.5V)
L1 4.7µH
CIN
L3 10µH
10µFx3
PVIN
LX3
LX1
V
POS
AVDD
VO1
FBS
VO3
(Fixed 4.6V)
CVO1
(5.8V to 7.9V)
CVO3
22µF
AVIN
22µF
CAV
1µF
RT4722C
VPOS_FB
L2 4.7µH
LX2
AVDD Enable
ENO3
FD
VO2
V
NEG
(-1.4V to -5.4V)
VO1, VO2 Enable and Program VO2
SWIRE
CVO2
22µF
PGND1 PGND2 AGND
Table 5. Typical BOM List
Description
Reference
Qty
3
Part Number
Package
Supplier
Murata
Murata
Murata
Toko
C
GRM188R61C106KAAL
10F/16V/X5R
22F/16V/X5R
1F/16V/X5R
4.7H
0603
0805
0603
IN
C
, C
VO1
, C
VO2 VO3
1
GRM219R61C226ME15
GRM185R61C105KE44
1239AS-H-4R7M = P2
1239AS-H-100M = P2
C
1
AV
L1, L2
L3
1
2.5 x 2.0 x 1.2mm
2.5 x 2.0 x 1.2mm
1
10H
Toko
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DS4722C-00 September 2017
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
