FEATURES
• AEC-Q100 Automotive Qualified
• -40 °C ~ 125 °C Junction Temperature Range
• 12 V Input Optimized (Automotive Applications)
• QC2.0 Decoding + USB Auto-Detect + USB-PD
Type-C Support
• Apple MFi and 2.4 A compatible
• Samsung and BC1.2 compatible
• 40 V Input Voltage Surge
• 4.5 V - 36 V Operational Input Voltage
• 5.1 V/9.1 V Output with +/-1% Accuracy
• Up to 3.0 A Output current
• Constant Current Regulation Limit
• Hiccup Mode Protection at Output Short
• >90% Efficiency at Full Load
• 0.5 mA Low Standby Input Current
• 5.7 V/10.1 V Output Over-voltage Protection for
5.1 V/9.1 V Outputs
• Cord Voltage Compensation
• Meet EN55022 Class B Radiated EMI Standard
• 8 kV ESD HBM Protection on DP and DM
• SOP-8EP Package

APPLICATIONS
• Car Charger
• Cigarette Lighter Adaptor (CLA)
• Rechargeable Portable Device
• CV/CC regulation DC/DC converter

GENERAL DESCRIPTION
ACT4530M is a wide input voltage, high efficiency stepdown
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 12 V
automotive applications. The ACT4530M eliminates the
issue with QC2.0 buck converters that try to operate
with VIN = 12 V to Vout = 12 V. 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 3.0 A output current at 125 kHz 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 6 mA
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
require very few external components for operation.