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AP3427M - 1.5MHz SYNCHRONOUS STEP-DOWN DC-DC CONVERTER

General Description

The AP3427M is a high efficiency step-down dual channel DC-DC voltage converter.

The chip operation is optimized by peak-current mode architecture with built-in synchronous power MOSFET switchers.

Key Features

  • High Efficiency Buck Power Converter.
  • Output Current: 1.0A/1.0A.
  • Low RDS(ON) Internal Switches: 200mΩ (VIN=5V).
  • Adjustable Output Voltages from 0.6V to 0.9×VIN.
  • Wide Operating Voltage Range: 2.5V to 5.5V.
  • Built-In Power Switches for Synchronous Rectification with High Efficiency.
  • Feedback Voltage: 600mV.
  • 1.5MHz Constant Frequency Operation.
  • Thermal Shutdown Protection.
  • Low Drop-Out Operation at 100% Duty Cycle.
  • Input Over Voltage Protection.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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AP3427M DUAL 1A, 1.5MHz SYNCHRONOUS STEP-DOWN DC-DC CONVERTER Description The AP3427M is a high efficiency step-down dual channel DC-DC voltage converter. The chip operation is optimized by peak-current mode architecture with built-in synchronous power MOSFET switchers. The oscillator and timing capacitors are all built-in providing an internal switching frequency of 1.5MHz that allows the use of small surface mount inductors and capacitors for portable product implementations. Pin Assignments Top View Integrated Soft Start (SS), Under Voltage Lock Out (UVLO), Thermal Shutdown Detection (TSD) and Short Circuit Protection are designed to provide reliable product applications. The device is available in adjustable output voltage ranging from 0.6V to 0.