www.austriamicrosystems.com

Revision 1.02

2 - 14

AS1367

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

OUT

1

Regulated Output Voltage. The current flowing out of this pin is equivalent

to a DC load current. Fixed 1.2, 1.5, 1.8, 3.0, 3.3 and 4.5V output, as well as

versions from 1.2V up to 5.0V can be ordered.

Bypass this pin with 3.3µF to GND.

BYP

2

Bypass. This pin should be connected via a 10nF capacitor to pin OUT.

SET

3

Set Input. Connect to GND for preset output. Connect to a resistive voltage-

divider between OUT and GND to set the output voltage between 1.2V and

5.0V.

EN

4

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

Connect this pin to pin IN for normal operation.

GND

5

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.

POK

6

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.

IN

7, 8

Input Voltage. These pins should be connected to the positive terminal of

the input capacitor. Bypass this pin with 1µF to GND. Input voltage can

range from 2.0V to 5.5V.

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.

1

OUT

2

BYP

3

SET

4

EN

8 IN

7 IN

6 POK

5 GND

AS1367

Exposed

Pad