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UC1874-1 - Step-down (Buck) Controllers

Datasheet Summary

Description

The UC3874 family of synchronous step-down (Buck) regulators provides high efficiency power conversion from an input voltage range of 4.5 to 36 volts.

Features

  • Operation to 36V Input Voltage.
  • Fixed Frequency Average Current Mode Control.
  • Standby Mode for Improved Efficiency at Light Load.
  • Drives External N-Channel MOSFETs for Highest Efficiency.
  • Sleep Mode Current < 50mA.
  • Complementary 1 Amp Outputs with Regulated Gate Drive Voltage.
  • LDO (Low Drop Out) Virtual 100% Duty Cycle Operation.
  • Non-Overlapping Gate Drives.

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Datasheet preview – UC1874-1

Datasheet Details

Part number UC1874-1
Manufacturer Unitrode
File Size 392.03 KB
Description Step-down (Buck) Controllers
Datasheet download datasheet UC1874-1 Datasheet
Additional preview pages of the UC1874-1 datasheet.

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Full PDF Text Transcription

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UC1874-1,-2 UC2874-1,-2 UC3874-1,-2 High Efficiency, Synchronous, Step-down (Buck) Controllers FEATURES • Operation to 36V Input Voltage • Fixed Frequency Average Current Mode Control • Standby Mode for Improved Efficiency at Light Load • Drives External N-Channel MOSFETs for Highest Efficiency • Sleep Mode Current < 50mA • Complementary 1 Amp Outputs with Regulated Gate Drive Voltage • LDO (Low Drop Out) Virtual 100% Duty Cycle Operation • Non-Overlapping Gate Drives DESCRIPTION The UC3874 family of synchronous step-down (Buck) regulators provides high efficiency power conversion from an input voltage range of 4.5 to 36 volts.
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