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AP3422 - 800mA Synchronous DC-DC Buck Converter

General Description

The AP3422 contains two independent 1.1MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converters, each of them is capable of driving a 800mA load with high efficiency, excellent line and load regulation.

Key Features

  • High Efficiency: up to 95%.
  • Output Current on Each Channel: 800mA.
  • Input Voltage Range: 2.5V to 5.5V.
  • Fixed 1.1MHz Frequency.
  • 100% Duty Cycle in Dropout.
  • Built-in Short Circuit Protection.
  • Built-in Thermal Shutdown Function.
  • Built-in Current Limit Function.
  • Shutdown Current:.

📥 Download Datasheet

Datasheet Details

Part number AP3422
Manufacturer BCD Semiconductor
File Size 418.13 KB
Description 800mA Synchronous DC-DC Buck Converter
Datasheet download datasheet AP3422 Datasheet

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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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Preliminary Datasheet Dual 1.1MHz, 800mA Synchronous DC-DC Buck Converter AP3422 General Description The AP3422 contains two independent 1.1MHz fixed frequency, current mode, PWM synchronous buck (step-down) DC-DC converters, each of them is capable of driving a 800mA load with high efficiency, excellent line and load regulation. Each converter integrates a main switch and a synchronous switch without an external Schottky diode. It is ideal for powering portable equipment that runs from a single Li-ion battery. A standard series of inductors are available from several different manufacturers optimized for use with the AP3422. This feature greatly simplifies the design of switch-mode power supplies. This IC is available in DFN-3×3-10 package.