www.austriamicrosystems.com

Revision 1.05

2 - 15

AS1364

Datasheet - P i n o u t

4 Pinout

Pin Assignments

Figure 2. Pin Assignments (Top View)

Pin Descriptions

Table 2. Pin Descriptions

Pin Number

Pin Name

Description

1POK

threshold. Connect a 100k

Ω pull-up resistor from this pin to OUT to obtain an output

voltage (see Figure 1 on page 1).

2EN

Active-Low Shutdown Input. A logic low disables the output and reduces the

supply current to 0.1µA. In shutdown, the POK output is low and OUT high

impedance.

GND: Shutdown.

3, 4

IN

2.0V to 5.5V Supply Voltage. Bypass with a 4.7µF input capacitor to GND (see

Capacitor Selection and Regulator Stability on page 12). These inputs are internally

connected, but they also must be externally connected for proper operation.

5, 6

OUT

Regulator Output. Bypass with a 4.7µF low-ESR output capacitor to GND. Connect

the OUT pins together externally.

7

SET/BYP

Voltage-Setting Input. Connect to GND to select the factory-preset output voltage.

Connect this pin to an external resistor-divider for adjustable-output operation (see

Figure 1 on page 1). (AS1364-AD only)

Bypass Pin. Connect a 10nF capacitor from this pin to OUT to improve PSRR and

noise performance. (AS1364-AD does not offer this feature)

8

GND

Ground

5OUT

3

IN

2

EN

1

POK

6OUT

7 SET/BYP

8GND

AS1364

4

IN