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AP3433 - 2MHz High Performance Synchronous Buck Converter

General Description

The AP3433 is a current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation.

The device integrates two N-channel power MOSFETs with low on-resistance.

Key Features

  • Input Voltage Range: 2.95V to 5.5V.
  • 0.827V Reference Voltage with ±3% Precision.
  • Two 45mΩ(typical) MOSFETs for High Efficiency at 3A Load.
  • High Efficiency: up to 94%.
  • Output Current: 3A.
  • Programmable Frequency:300kHz to 2MHz.
  • Current Mode Control.
  • Synchronizes to External Clock.
  • Adjustable Soft-start.
  • Soft Start-up into Pre-biased Output.
  • UV and OV Power Good Output.
  • Built-in Over Current.

📥 Download Datasheet

Datasheet Details

Part number AP3433
Manufacturer BCD Semiconductor
File Size 403.31 KB
Description 2MHz High Performance Synchronous Buck Converter
Datasheet download datasheet AP3433 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 3A, 2MHz High Performance Synchronous Buck Converter AP3433 General Description The AP3433 is a current mode, PWM synchronous buck (step-down) DC-DC converter, capable of driving a 3A load with high efficiency, excellent line and load regulation. The device integrates two N-channel power MOSFETs with low on-resistance. Current mode control provides fast transient response and cycle-by-cycle current limit. The switching frequency of AP3433 can be programmable from 300kHz to 2MHz, which allows small-sized components, such as capacitors and inductors. A standard series of inductors from several different manufacturers are available. This feature greatly simplifies the design of switch-mode power supplies. Under voltage lockout is internally set at 2.