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A7987 - 61V 3A asynchronous step-down switching regulator

General Description

The A7987 is a step-down monolithic switching regulator that can deliver up to 3 A DC.

The adjustable output voltage ranges from 0.8 V to VIN.

The wide input voltage range and the almost 100% duty cycle capability meet the fail-safe specifications for automotive systems.

Key Features

  • 3 A DC output current.
  • 4.5 V to 61 V operating input voltage.
  • Adjustable fsw (250 kHz to 1.5 MHz).
  • Output voltage adjustable from 0.8 V to VIN.
  • Synchronization.
  • Adjustable soft-start time.
  • Adjustable current limitation.
  • VBIAS improves efficiency at light load.
  • PGOOD open collector output.
  • Digital frequency fold-back in short-circuit.
  • Auto-recovery thermal shutdown.
  • Qualified following AEC.

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Other Datasheets by STMicroelectronics

Part Number Description
A7986A 3A step-down switching regulator

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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A7987 Datasheet 61 V, 3 A asynchronous step-down switching regulator with adjustable current limitation for automotive Product status link A7987 Features • 3 A DC output current • 4.5 V to 61 V operating input voltage • Adjustable fsw (250 kHz to 1.5 MHz) • Output voltage adjustable from 0.8 V to VIN • Synchronization • Adjustable soft-start time • Adjustable current limitation • VBIAS improves efficiency at light load • PGOOD open collector output • Digital frequency fold-back in short-circuit • Auto-recovery thermal shutdown • Qualified following AEC-Q100 requirements Applications • Designed for 24 V automotive battery systems • Industrial and commercial vehicles Description The A7987 is a step-down monolithic switching regulator that can deliver up to 3 A DC.