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A8650 - Adjustable Frequency 2A Synchronous Buck Regulator

Description

The A8650 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 A8650 incorporates current-mode control to provide simple compensation, excellent loop stability, and fast transient response.

Features

  • Automotive AEC-Q100 qualified.
  • Operating voltage range: 2.5 to 5.5 V.
  • UVLO stop threshold: 2.25 V (max).
  • Adjustable switching frequency (fOSC): 0.25 to 2.45 MHz.
  • Synchronizes to external clock: 1.2× to 1.5× fOSC (typ).
  • Internal 70 mΩ high-side switching MOSFET.
  • Internal 55 mΩ low-side switching MOSFET.
  • Capable of at least 2.0 A steady-state output current.
  • Sleep mode supply current less than 3 μA.
  • Adjustab.

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Datasheet Details

Part number A8650
Manufacturer Allegro
File Size 4.17 MB
Description Adjustable Frequency 2A Synchronous Buck Regulator
Datasheet download datasheet A8650 Datasheet
Additional preview pages of the A8650 datasheet.

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Full PDF Text Transcription

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A8650 Low Input Voltage, Adjustable Frequency 2 A Synchronous Buck Regulator with EN/SYNC and Power OK FEATURES AND BENEFITS • Automotive AEC-Q100 qualified • Operating voltage range: 2.5 to 5.5 V • UVLO stop threshold: 2.25 V (max) • Adjustable switching frequency (fOSC): 0.25 to 2.45 MHz • Synchronizes to external clock: 1.2× to 1.5× fOSC (typ) • Internal 70 mΩ high-side switching MOSFET • Internal 55 mΩ low-side switching MOSFET • Capable of at least 2.0 A steady-state output current • Sleep mode supply current less than 3 μA • Adjustable output voltage as low as 0.
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