AS1337
Datasheet - Application Information
9 Application Information
The AS1337 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 Figure 1 on page 1, Figure 14 and Figure 15 depict a few of the many applications for which the AS1337
converters are perfectly suited.
Figure 14. Single AA Cell to 3.3V Synchronous Boost Converter
L1
4.7µH
VOUT = 3.3V
VOUT
FB
LX
R1
560kΩ
COUT
22µF
VIN = 1.5V
VIN
R2
330kΩ
CIN
10µF
AS1337
On
Off
EN
POK
GND
PGND
Figure 15. Single Lithium Cell to 5V
L1
4.7µH
VOUT = 5.0V
VOUT
FB
LX
R1
680kΩ
COUT
22µF
Lithium-Ionen Cell
VIN
R2
220kΩ
CIN
10µF
AS1337
On
Off
EN
POK
GND
PGND
www.austriamicrosystems.com/DC-DC_Step-Up/AS1337
Revision 1.04
10 - 14
AMSCO [ AMS(艾迈斯) ]
