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UC3666 - DUAL CHANNEL 1A HIGH EFFICIENCY STEP-DOWN DC/DC CONVERTER

General Description

The UTC UC3666 is a dual channel high efficiency step-down DC/DC converter with constant frequency and current mode.

A main switch and a synchronous rectifier for high efficiency are contained in each converter, and thus an external Schottky diode is saved.

Key Features

  • S.
  • high efficiency.
  • Current mode operation.
  • Input voltage varying from 2.5V to 5.5V.
  • Output current on each channel: 1A.
  • Fixed frequency operation.
  • 0.6V reference allows low output voltages.
  • Over-temperature protection circuit.
  • RoHS Compliant (100% green available).

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UNISONIC TECHNOLOGIES CO., LTD UC3666 DUAL CHANNEL 1A HIGH EFFICIENCY STEP-DOWN DC/DC CONVERTER  DESCRIPTION The UTC UC3666 is a dual channel high efficiency step-down DC/DC converter with constant frequency and current mode. A main switch and a synchronous rectifier for high efficiency are contained in each converter, and thus an external Schottky diode is saved. The output voltage can be adjusted to as low as 0.6V. With input voltage range from 2.5V ~ 5.5V , each converter can deliver 1A current to the load. Due to the internally fixed 1.6MHz switching frequency, small surface mount inductors and capacitors can be used.