Pam2303, Typical applications circuit, Pin descriptions – Diodes PAM2303 User Manual

Page 2: Functional block diagram

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PAM2303

Document number: DSxxxxx Rev. 1 - 2

2 of 14

www.diodes.com

November 2012

© Diodes Incorporated

PAM2303

A Product Line of

Diodes Incorporated

Typical Applications Circuit

⎛ +

×

=

2

R

1

R

1

6

.

0

V

O

Pin Descriptions

Pin

Name

Package Name

Function

QFN3x3-16 SOP-8EP DFN3x3-10

PGND

1, 2, 3

2

Main power ground pin.

FB

4

3

6

Feedback voltage to internal error amplifier, the threshold voltage is 0.6V.

GND

5

4

4

Signal ground for small signal components.

NC

6, 16

7

Not connected.

EN 7 5 5

Enable control input. Force this pin voltage above 1.5V, enables the chip, and below
0.3V shuts down the device.

Test

8

6

Test mode. “Low”connection is recommended.

VIN

9

7

8, 9, 10

Bias supply. Chip main power supply pin.

PVIN

10, 11, 12

8

Input supply for power stage. Must be closely decoupled to PGND.

SW

13, 14, 15

1

1, 2, 3

The drains of the internalmain and synchronous power MOSFET.


Functional Block Diagram

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