PAM2321

Document number: DSxxxxx Rev. 2 - 1

2 of 11

www.diodes.com

January 2013

© Diodes Incorporated

PAM2321

A Product Line of

Diodes Incorporated

Typical Applications Circuit

(

)

2

R

/

1

R

1

*

6

.

0

+

=

Pin Descriptions

Pin

Name

Function

PVIN

Input power supply tied to the source of the high side P-Channel MOSFET.

VIN

Power supply; supplies power for the internal circuitry.

FB

Feedback input pin. This pin is connected directly to the converter output for the 1.2V fixed output version, or connected to an

external resistor divider for the adjustable output version.

EN

Enable pin. A logic low disables the converter and it consumes less than 1μA of current. When connected high, it resumes normal

operation.

SW

Switching node. Connect the inductor to this pin. It is internally connected to the drain of both high and low side MOSFETs.

EP

Exposed pad of the package provides both electrical contact to the ground and good thermal

contact to the PCB. This pad must be soldered to the PCB for proper operation.

Functional Block Diagram