AP3409/A

Document number: DS36789 Rev. 2 - 2

4 of 11

www.diodes.com

January 2014

© Diodes Incorporated

AP3409/A

A Product Line of

Diodes Incorporated

SD

Oscillator

SUM

CS

0.8V

EA

OCP

Control

Logic

OTP

UVLO

0.4V

SHDN/RT

PVDD

SW

GND

PGND

VDD

FB

COMP

1

2

10

3, 4

5

6

7

9

PWM

Clamp

SS

DC

8

PGOOD

0.725V

0.9V

Functional Block Diagram of AP3409A

Symbol

Parameter

Rating

Unit

VDD Pin Voltage

-0.3 to 6

V

PVDD Pin Voltage

-0.3 to 6

V

FB Pin Voltage

-0.3 to 6

V

COMP Pin Voltage

-0.3 to 6

V

SW Pin Voltage

V

SHDN/RT Pin Voltage

-0.3 to 6

V

Thermal Resistance (Junction to Ambient)

110

ºC/W

Thermal Resistance (Junction to Case)

3

ºC/W

Operating Junction Temperature

+150

ºC

Storage Temperature

-65 to +150

ºC

Lead Temperature (Soldering, 10 sec)

+260

ºC

–

ESD (Machine Model)

200

V

–

ESD (Human Body Model)

2000

V

Note 5

: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and

functional operation of the device at these or any other conditions beyond those indicated u

nder “Recommended Operating Conditions” is not implied.

Exposure to “Absolute Maximum Ratings” for extended periods may affect device reliability.