AS1322_1 AMSCO [austriamicrosystems AG], AS1322_1 Datasheet - Page 9

• Manufacturer Part Number: AS1322_1
• Description: Low Voltage, Micropower, DC-DC Step-Up Converters
• Manufacturer: AMSCO [austriamicrosystems AG]

AS1322
Data Sheet
9 Application Information
The AS1322 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
are perfectly suited.
Figure 16. Single AA Cell to 3.3V Synchronous Boost Converter with Load Disconnect in Shutdown
Figure 17. Single Lithium Cell to 5V, 250mA
www.austriamicrosystems.com
On
Off
Figure 1 on page
Battery
Lithium
Battery
- A p p l i c a t i o n I n f o r m a t i o n
AA
On
Off
4.7µF
4.7µF
C
C
1
1
1, Figures 16-19 depict a few of the many applications for which the AS1322 converters
SHDNN
SHDNN
V
V
4.7µH
4.7µH
IN
IN
6
4
6
4
L1
L1
AS1322
AS1322
510kΩ
2
2
1
1
R
3
GND
GND
SW
SW
Revision 1.07
D1
D1
5
V
3
FB
5
V
3
FB
4.7µF
4.7µF
OUT
OUT
C
C
2
2
2Ω
100nF
510kΩ
1.02MΩ 1%
R
332kΩ 1%
3
Q1
R
R
Snubber
Optional
1
2
100pF
C
1.02MΩ
604kΩ
3
1%
1%
R
R
2
1
3.3V, 160mA
V
OUT
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