RT7262A
Typical Application Circuit
For WDFN-14L 4x3 Package
V
IN
C
IN
22µF
PGOOD
R3
100k
C
C
0.1µF
ON/OFF
7 EN/SYNC
AGND GND
14
12, 13, 15 (Exposed Pad)
1
VIN
BOOT
RT7262A
SW
9 PGOOD
11
FB 8
SS 10
C
SS
47nF
R
T
R2
6
2, 3, 4, 5
C
BOOT
100nF
L
V
OUT
R1
C
OUT
VCC
For SOP-8 (Exposed Pad) Package
1
C
IN
22µF
Chip Enable
4
2, 3
6
FB
VCC 7
C
C
0.1µF
R
T
R2
R1
C
OUT
C
BOOT
100nF
L
V
OUT
V
IN
VIN
BOOT
RT7262A
SW
5 EN/SYNC
8, 9 (Exposed Pad)
GND
Table 1. Recommended Components Selection
V
OUT
(V)
5
3.3
2.5
1.8
1.5
1.2
1.05
R1 (kΩ)
75
75
75
5
5
5
5
R2 (kΩ)
14.46
24.32
35.82
4.07
5.84
10.31
16.69
R
T
(kΩ)
0
0
0
30
39
47
47
L (μH)
4.7
3.6
3.6
2
2
2
1.5
C
OUT
(μF)
22 x 2
22 x 2
22 x 2
22 x 2
22 x 2
22 x 2
22 x 2
Copyright
©
2012 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS7262A-01
September 2012
www.richtek.com
7
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
