AS1329
Data Sheet
- Application Information
9 Application Information
The AS1329 is perfectly suited for LED matrix displays, bar-graph displays, instrument-panel meters, dot matrix dis-
plays, set-top boxes, white goods, professional audio equipment, medical equipment, industrial controllers to name a
few applications.
Along with
Figures 16-19 depict a few of the many applications for which the AS1329 converters
are perfectly suited.
Figure 16. Single AA Cell to 3.3V Synchronous Boost Converter with Load Disconnect in Shutdown
L1
4.7µH
1 SW
6
5
V
OUT
D1
AA
Battery
C
1
4.7µF
V
IN
V
OUT
3.3V, 160mA
R
3
510kΩ
R
1
1.02MΩ
1%
AS1329
4
C
2
4.7µF
On
Off
3
SHDNN
2 GND
FB
R
2
604kΩ
1%
Q1
R
3
510kΩ
Figure 17. Single Lithium Cell to 5V, 250mA
Optional
Snubber
2Ω
100nF
L1
4.7µH
1 SW
6
5
V
OUT
D1
Lithium
Battery
V
IN
C
1
4.7µF
AS1329
4
C
2
4.7µF
R
1
1.02MΩ 1%
C
3
100pF
On
Off
3
SHDNN
2 GND
FB
R
2
332kΩ 1%
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