AP7344

Document number: DS37368 Rev. 1 - 2

2 of 15

www.diodes.com

January 2015

© Diodes Incorporated

AP7344

Pin Descriptions

Pin Number

Pin Name

Function

GND

1, 4

Ground

2

Channel 1 Output Voltage pin

3

Channel 2 Output Voltage pin

EN2

5

Chanel 2 Enable pin. This pin should be driven either high or low and must not

be floating. Driving this pin high enables channel 2 output, while pulling it low

puts Chanel 2 regulator into shutdown mode.

6

Input Voltage pin

7

Input Voltage pin

EN1

8

Chanel 1 Enable pin. This pin should be driven either high or low and must not

be floating. Driving this pin high enables channel 1 output, while pulling it low

puts Chanel 1 regulator into shutdown mode.

–

Thermal PAD

In PCB layout, prefer to use large copper area to cover this pad for better

thermal dissipation, then connect this area to GND or leave it open. However do

not use it as GND electrode function alone.

Functional Block Diagram

Vref

R1_1

Current Limit

Error Amp.

R2_1

GND

EN1

Vref

R1_2

Current Limit

Error Amp.

R2_2

EN2

Vref

R1_1

Current Limit

Error Amp.

R2_1

GND

EN1

Vref

R1_2

Current Limit

Error Amp.

R2_2

EN2

AP7344 (No Discharge)

AP7344 (With Discharge)