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A8654 Datasheet 2MHz Synchronous Buck Regulator

Manufacturer: Allegro MicroSystems

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General Description

The A8654 is a high output current synchronous buck regulator that integrates low RDSON high-side and low-side N-channel MOSFETs.

The A8654 incorporates PWM current-mode control to provide simple compensation, excellent loop stability and fast transient response.

The A8654 uses external compensation to accommodate a wide range of power components to achieve both excellent loop stability and desirable transient response.

Overview

A8654 Wide Input Voltage, Adjustable Frequency, 3 A, 2 MHz Synchronous Buck.

Key Features

  • Automotive AEC-Q100 qualified.
  • Operating voltage range: 4 to 36 V.
  • UVLO STOP threshold: 2.6 VTYP.
  • Maximized duty cycle for low-dropout operation.
  • Withstands surge voltages up to 40 V.
  • Capable of 3 A steady-state output current.
  • Integrated high-side and low-side switching MOSFETs.
  • Adjustable switching frequency (fSW): 100 kHz to 2.2 MHz.
  • Synchronization capability to external clock: 100 kHz to 2.2 MHz.
  • Freq.

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