PAM2309

Document number: DSxxxxx Rev. 2 - 1

2 of 17

www.diodes.com

January 2013

© Diodes Incorporated

PAM2309

A Product Line of

Diodes Incorporated

Typical Applications Circuit

V

2

R

1

R

1

5

.

0

O

⎟

⎟

⎠

⎞

⎜

⎜

⎝

⎛

+

×

=

Pin Descriptions

Pin

Name

Function

VIN

Chip main power supply pin.

GND

Ground

EN

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

0.3V shuts down the device.

VOUT/FB

VOUT: Output voltage feedback pin, an internal resistive divider divides the output

voltage down for comparison to the internal reference voltage.

FB:

Feedback voltage to internal error amplifier, the threshold voltage is 0.5V.

SW

The drains of the internal main and synchronous power MOSFET.

NC

Not connected

Functional Block Diagram