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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

Pin Number

Pin Name

Description

1FB

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

2GND

Ground

3POK

Power OK. Active-low open-drain reset output.

Note: Connect pin POK to GND when the Power-Ok feature is not used.

4LX

Inductor Connection. Connect this pin to an external inductor.

5IN

4.5 to 20V Input Supply Voltage

6ILIMIT

Peak Current Control Input. Connect this pin to IN or GND to set peak current limit

(see Setting Current Limit on page 10).

7

SHDNN

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.

8OUT

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.

9NC

Exposed Pad. This pad is not connected internally. Connect to GND or do not

connect.

5IN

3

POK

2

GND

1

FB

8OUT

AS1341

4

LX

7 SHDNN

6 ILIMIT

9