
AS1322
Datasheet - A p p l i c a t i o n I n f o r m a t i o n
Figure 18. Single AA Cell to ±3V Synchronous Boost Converter
L1
4.7μH
1
SW
C 3
1μF
6
5
V OUT1
AA
Battery
C 1
4.7μF
V IN
AS1322
V OUT
R 1
1.02M ?
1%
C 2
4.7μF
3V, 90mA
On
4
3
Off
SHDNN
2
GND
FB
R 2
750k ?
D1
D2
C 4
10μF
1%
V OUT2
-3V, 10mA
Figure 19. Single AA Cell to 2.5V Synchronous Boost Converter
L1
4.7μH
1
SW
D1
6
5
V OUT
AA
Battery
C 1
10μF
V IN
AS1322
V OUT
R 1
1.02M ?
1%
C 2
10μF
2.5V, 230mA
On
Off
4
SHDNN
3
FB
www.ams.com/DC-DC_Step-Up/AS1322
2
GND
Revision 1.10
R 2
1.02M ?
1%
10 - 18