www.austriamicrosystems.com

Revision 1.04

2 - 14

AS1371

Datasheet - P i n A s s i g n m e n t s

4 Pin Assignments

Figure 2. Pin Assignments (Top View)

Pin Descriptions

Table 1. Pin Descriptions

Pin Name

Pin Number

Description

IN

1

LDO Input. Input voltage range: 1.2V to 3.6V. Bypass with 1µF to GND.

POK

2

Power-OK Output. Active-low, open-drain output indicates an out-of-

regulation condition. Connect a 100k

Ω pull-up resistor to pin OUT for logic

levels. Leave this pin unconnected if the Power-OK feature is not used.

EN

3

Active-High Enable Input. A logic low reduces the supply current to < 1µA.

Connect to pin IN for normal operation.

GND

4

Ground. This pin also functions as a heat sink. Solder it to a large pad or to

the circuit-board ground plane to maximize power dissipation.

SENSE

5

Sense Input. Represents the input for the Power-OK behaviour. If

connected to GND the POK output is related to OUT.

OUT

6

LDO Output. Bypass with 1µF to GND.

GND

Exposed Pad

Exposed Pad. This pin also functions as a heat sink. Solder it to a large pad

or to the circuit-board ground plane to maximize power dissipation. Internally

it is connected GND.

AS1371

1

2

3

IN

POK

EN

GND

OUT

SENSE

6

5

4

Exposed

Pad