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www.active-semi.com

Copyright © 2019 Active-Semi, Inc.

FEATURES

Type-C Support

5.1V/9.1V Outputs

APPLICATIONS

GENERAL DESCRIPTION

ACT4530M is a wide input voltage, high efficiency

step-down DC/DC converter that operates in either

CV (Constant Output Voltage) mode or CC

(Constant

Output

Current)

mode.

It

is

an

improvement over the ACT4529 with its QC2.0

compatibility in 12V automotive applications. The

ACT4530M eliminates the issue with QC2.0 buck

converters that try to operate with Vin = 12V to Vout

= 12V. In addition to QC2.0, it also supports Apple,

Samsung and BC1.2 protocols. ACT4530M also

has an optional input pin, PDC, that accepts a tri-

state input for USB-PD control. The ACT4530M

also

filters

out

non-QC2.0

compatible

communication pulses generated by some phones’

communication protocols.

ACT4530M has accurate output current limits under

constant

current

regulation

to

meet

MFi

specification. It provides up to 3.0A output current

at 125kHz switching frequency. ACT4530M utilizes

adaptive drive technique to achieve good EMI

performance while main >90% efficiency at full load

for mini size CLA designs. It also has output short

circuit protection with hiccup mode. The average

output current is reduced to below 6mA when

output is shorted to ground. Other features include

output

over

voltage

protection

and

thermal

shutdown.

This device is available in a SOP-8EP package and

requires

very

few

external

components

for

operation.

ACT4530M

40V/3.0A CV/CC Buck Converter Featuring QC2.0, USB Auto-Detect and USB-PD

Rev 1.0, 04-Jan-2019

Typical Application Circuit

V/I Profile

* Patent Pending