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)
IN 1
6 OUT
POK 2
AS1371
Exposed
Pad
5 SENSE
EN 3
4 GND
Pin Descriptions
Table 1. Pin Descriptions
Pin Name
IN
POK
EN
GND
SENSE
OUT
GND
Pin Number
1
2
3
4
5
6
Exposed Pad
Description
LDO Input.
Input voltage range: 1.2V to 3.6V. Bypass with 1µF to GND.
Power-OK Output.
Active-low, open-drain output indicates an out-of-
regulation condition. Connect a 100kΩ pull-up resistor to pin OUT for logic
levels. Leave this pin unconnected if the Power-OK feature is not used.
Active-High Enable Input.
A logic low reduces the supply current to < 1µA.
Connect to pin IN for normal operation.
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 Input.
Represents the input for the Power-OK behaviour. If
connected to GND the POK output is related to OUT.
LDO Output.
Bypass with 1µF to GND.
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.
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