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A8651 - Adjustable Frequency Dual Synchronous 2A / 2A Buck Regulator

Description

The A8651 is an adjustable frequency, high output current, PWM regulator that integrates a high-side, P-channel MOSFET and a low-side, N-channel MOSFET.

The A8651 incorporates current-mode control to provide simple compensation, excellent loop stability, and fast transient response.

Features

  • AEC-Q100 qualified.
  • Operating voltage range: 2.5 to 5.5 V.
  • UVLO stop threshold: 2.25 V (max).
  • Dual outputs with up to 2 A output current per regulator.
  • Adjustable output voltage as low as 0.8 V.
  • Internal 80 mΩ high-side switching MOSFET.
  • Internal 55 mΩ low-side switching MOSFET.
  • Adjustable oscillator frequency ( fOSC ): 0.35 to 2.2 MHz.
  • Synchronizes to external clock: 1.2 × to 1.5 × fOSC.
  • 180° phase shift.

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Datasheet preview – A8651

Datasheet Details

Part number A8651
Manufacturer Allegro
File Size 3.87 MB
Description Adjustable Frequency Dual Synchronous 2A / 2A Buck Regulator
Datasheet download datasheet A8651 Datasheet
Additional preview pages of the A8651 datasheet.

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Full PDF Text Transcription

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A8651 Low Input Voltage, Adjustable Frequency Dual Synchronous 2 A / 2 A Buck Regulator with Synchronization, 2× EN, and 2× NPOR FEATURES AND BENEFITS • AEC-Q100 qualified • Operating voltage range: 2.5 to 5.5 V • UVLO stop threshold: 2.25 V (max) • Dual outputs with up to 2 A output current per regulator • Adjustable output voltage as low as 0.8 V • Internal 80 mΩ high-side switching MOSFET • Internal 55 mΩ low-side switching MOSFET • Adjustable oscillator frequency ( fOSC ): 0.35 to 2.2 MHz • Synchronizes to external clock: 1.2 × to 1.
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