RT5779A/B
Typical Application Circuit
V
IN
2.5V to 6V
R
PGOOD
100k
PGOOD
Enable
2
C
IN
22µF
1
VIN
RT5779A/B
PGOOD
FB 7
R2
20k
VOUT 5
PGND
4
AGND
6
LX
3
L
0.47µH
R1
20k
C
OUT
44µF
V
OUT
1.2V/5A
8 EN
Table 1. Suggested Component Values
V
OUT
(V)
1
1.2
1.8
2.5
3.3
R1 (k)
13.3
20
40.2
63.4
90.9
R2 (k)
20
20
20
20
20
L (H)
0.33
0.47
0.47
0.47
0.47
C
OUT
(F)
44
44
44
44
44
Note : All the input and output capacitances are the suggested values, which refer to the effective capacitances, and are subject
to any de-rating effect, like a DC bias.
Copyright
©
2017 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS5779A/B-00 October 2017
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
