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R5973AD - Up to 1.5A step-down switching regulator

Datasheet Summary

Description

The R5973AD is a step-down monolithic power switching regulator with a minimum switch current limit of 1.8 A, so it is able to deliver up to 1.5 A DC current to the load depending on the application conditions.

The output voltage can be set from 1.235 V to VIN.

Features

  • General features.
  • 1.5 A DC output current.
  • Operating input voltage from 4 V to 36 V.
  • 3.3 V / (± 2%) reference voltage.
  • Large ambient temperature range: -40 °C to 125 °C.
  • Output voltage adjustable from 1.235 V to VIN.
  • Low dropout operation: 100% duty cycle.
  • 500 kHz internally fixed frequency.
  • Voltage feed-forward.
  • Zero load current operation.
  • Internal current limiting.
  • Inhibit for zero current.

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Datasheet preview – R5973AD

Datasheet Details

Part number R5973AD
Manufacturer STMicroelectronics
File Size 1.28 MB
Description Up to 1.5A step-down switching regulator
Datasheet download datasheet R5973AD Datasheet
Additional preview pages of the R5973AD datasheet.

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Full PDF Text Transcription

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R5973AD Up to 1.5 A step-down switching regulator for aerospace applications Datasheet - preliminary data – Designed and manufactured to meet subppm quality goals – Advanced mold and frame designs for superior resilience in harsh environments (acceleration, EMI, thermal, humidity) – Extended screening capability on request HSOP8 - exposed pad Features  General features – 1.5 A DC output current – Operating input voltage from 4 V to 36 V – 3.3 V / (± 2%) reference voltage – Large ambient temperature range: -40 °C to 125 °C – Output voltage adjustable from 1.
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