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UD05104A - 1MHz SYNCHRONOUS STEP-DOWN DC/DC CONVERTER

Datasheet Summary

Description

The UTC UD05104A is a 1A high frequency synchronous Step Down DC/DC converter using constant frequency, current mode architecture.

The device integrates main switch and synchronous rectifier switch for high efficiency without an external schottky diode.

Features

  • Input Voltage Range from 2.5V to 6.0V.
  • +/-2% 0.6V Feedback Voltage Accuracy.
  • 1MHz Switching Frequency.
  • Continuous Output Current up to 1A.
  • Low Quiescent Current of 30µA.
  • 0.1μA Shutdown Current.
  • 100% Duty Cycle Operation.
  • Built-in 170mΩ/150mΩ Power Switch.
  • Internal Soft-Start.
  • Cycle-by-Cycle Current Limit Protection.
  • Over-Load and Hiccup Mode Short Circuit.
  • Thermal Shutdown Protection.

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Datasheet preview – UD05104A

Datasheet Details

Part number UD05104A
Manufacturer UTC
File Size 182.71 KB
Description 1MHz SYNCHRONOUS STEP-DOWN DC/DC CONVERTER
Datasheet download datasheet UD05104A Datasheet
Additional preview pages of the UD05104A datasheet.

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD UD05104A Preliminary LINEAR INTEGRATED CIRCUIT 5V, 1A, 1MHz SYNCHRONOUS STEP-DOWN DC/DC CONVERTER  DESCRIPTION The UTC UD05104A is a 1A high frequency synchronous Step Down DC/DC converter using constant frequency, current mode architecture. The device integrates main switch and synchronous rectifier switch for high efficiency without an external schottky diode. To maximize light load efficiency, The UTC UD05104A draws only 30μA quiescent current to improve light load efficiency. In shutdown, The UTC UD05104A reduces supply current less than 1μA. The UTC UD05104A can supply 1A of load current from 2.5V to 6.0V input voltage. The output voltage can be regulated as low as 0.6V.
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