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Axelite Confidential Materials, do not copy or distribute without written consent.

Rev.1.4 Oct.04, 2019

AX3015

2A PWM Buck DC/DC Converter

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GENERAL DESCRIPTION

The AX3015 series are monolithic IC designed for a step-down DC/DC converter, and

own the ability of driving a 2A load without additional transistor. It saves board space. The

external shutdown function can be controlled by logic level and then come into standby

mode. The internal compensation makes feedback control having good line and load

regulation without external design. Regarding protected function, thermal shutdown is to

prevent over temperature operating from damage; current limit is against over current

operating of the output switch that set by outside resistance. Current limit depends on

RSENSE value. The over voltage protection (OVP) that can avoid high VOUT voltage to

damage circuit and capacitor, the OVP voltage is set by outside resistances. When SCP

happened and VEN/CT>0.5V, the driver can be auto restart that can prevent driver damage.

The auto-restart time set by outside capacitor. The chip is available in SOP-8L-EP package

which features small size as exposed pad to reduce the junction-to-case resistance.



FEATURES

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Operating voltage can be up to 40V.

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Adjustable version output voltage range form 1.2V to 30V.

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Output load current: 2A.

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External OVP setting function.

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Operating Frequency: 130KHz

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Voltage mode non-synchronous PWM converter

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Thermal-shutdown and current-limit protection.

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Shutdown function and auto restart control.

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Short Circuit Protect (SCP).

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External current limit setting.

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Under voltage Lockout.

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SOP-EP Pb-Free package.

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Built-in switching transistor on chip.

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RoHS and Halogen free compliance.