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AS1334

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

4 Pin Assignments

Figure 2. Pin Configuration

Pin Descriptions

Table 1. Pin Descriptions

Pin Name

Pin Number

Description

FB

1

Feedback Pin. Connect to the output at the output filter capacitor.

POK

2

Power-OK.

EN

3

Enable Input. Set this digital input high for normal operation. For shutdown,

set low.

VDD

4

+2.7V to +5.5V Power Supply Voltage. Analog Supply Input.

SGND

5, 9

Analog and Control Ground.

PVIN

6

+2.7V to +5.5V Power Supply Voltage. Input to the internal PFET switch.

SW

7

Switch Pin. Switch node connection to the internal PFET switch and NFET

synchronous rectifier. Connect to an inductor with a saturation current rating

that exceeds the maximum switch peak current limit specification of the

AS1334.

PGND

8

Power Ground.

5SGND

3

EN

2

POK

1

FB

8PGND

AS1334

4

VDD

7 SW

6PVIN

9

SGND