www.ams.com/DC-DC_Step-Up/AS7620

Revision 1.18

2 - 16

AS7620

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

4 Pin Assignments

Figure 2. Pin Assignments (Top View)

4.1 Pin Descriptions

Table 1. Pin Descriptions

Pin Number

Pin Name

Description

1

High Voltage Power Supply Input

2

GND

Must be connected to GND

3

LX

Power Output to Inductor

4

GND

Must be connected to GND

5

FB

Feedback input

6

ILIM

Current Limit input

7

SHDN

Shutdown input, active low

8

GND

Must be connected to GND

9

GND

Must be connected to GND

10

PF

Early Power Fail output, open drain, active LOW

11

VEPF

Comparator voltage input for early power fail warning

12

PG

Power Good, open drain, active HIGH output, monitors feedback voltage

Pad

PGND

Exposed pad. Connect to GND plane to help thermal dissipation

1

2

3

4

5

6

7

8

9

10

11

12

GND

LX

GND

GND

SHDN

AS7620

PGND