ACE738D

2A, 24V Synchronous Step-Down Converter

VER 1.1

2

Packaging Type

SOP-8

Ordering information

ACE738D XX + H

Pin Description

SOP-8

Description

Function

1

BST

Boostrap pin for top switch. A 0.01uF or larger capacitor should be

connected between this pin and the SW pin to supply current to the top

switch and top switch driver.

2

IN

Input voltage pin. VIN supplies power to the IC. Connect a 4.6V to 24V

supply to VIN and bypass VIN to GND with a suitably large capacitor to

eliminate noise on the input to the IC.

3

SW

SW is the switching node that supplies power to the output. Connect the

output LC filter from SW to the output load.

4

GND

Power ground pin.

5

FB

Output feedback pin. FB senses the output voltage and is regulated by the

control loop to 0.923V. Connect a resistive divider at FB.

6

NC

Not Connected.

7

EN

Drive EN pin high to turn on the regulator and low to turn off the regulator.

8

NC

Not Connected.

FM：SOP-8

Pb - free

Halogen - free