AS1341 austriamicrosystems AG, AS1341 Datasheet - Page 2

• Manufacturer Part Number: AS1341
• Description: Step-Down Converter
• Manufacturer: austriamicrosystems AG

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AS1341
Data Sheet - P i n o u t
4 Pinout
Pin Assignments
Figure 2. Pin Assignments (Top View)
Pin Descriptions
Table 1. Pin Descriptions
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Pin Number
1
2
3
4
5
6
7
8
9
Pin Name
SHDNN
ILIMIT
GND
POK
OUT
NC
FB
LX
IN
Feedback Input. For the fixed 5V output connect to GND. For adjustable output,
connect to a resistive divider between pins OUT and GND to set the output voltage
between 1.25V and V
Ground
Power OK. Active-low open-drain reset output.
Note: Connect pin POK to GND when the Power-Ok feature is not used.
Inductor Connection. Connect this pin to an external inductor.
4.5 to 20V Input Supply Voltage
Peak Current Control Input. Connect this pin to IN or GND to set peak current limit
(see Setting Current Limit on page
Shutdown Input. A low on this pin puts the AS1341 into shutdown mode. Supply
current is reduced to 0.8µA and LX goes high-impedance.
Regulated Output Voltage High-Impedance Sense Input. This pin is connected to
the internal resistor-divider network. Connect this pin to GND when not used.
Exposed Pad. This pad is not connected internally. Connect to GND or do not
connect.
GND
POK
FB
LX
1
2
3
4
IN
Revision 1.00
AS1341
.
9
10).
8 OUT
7 SHDNN
6 ILIMIT
5 IN
Description
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