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UD05158 - LOW NIOSE 1.5MHZ SYNCHRONOUS STEP-DOWN CONVERTER

General Description

The UTC UD05158 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs.

It offers a very compact solution to achieve a 1.5A continuous output current over from 2.7V to 5.5V input supply range, with excellent load and line regulation.

Key Features

  • Output Current : Up to 1.5A.
  • Output Voltage : 0.6V to VIN.
  • Input Voltage : 2.7V to 5.5V.
  • Low-RDS(ON) Internal Power MOSFETs.
  • High-Efficiency Synchronous-Mode Operation, up to 95%.
  • 200uA (typ. ) No Load Quiescent Current.
  • Shutdown Current < 1µA.
  • 100% Duty Cycle Operation.
  • Fixed 1.5MHz Switching Frequency.
  • Current Mode Operation.
  • Internal Soft-Start.
  • Current Limit Protection.
  • Over-temperature Protection.
  • Input Under Voltage.

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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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UNISONIC TECHNOLOGIES CO., LTD UD05158 LINEAR INTEGRATED CIRCUIT 1.5A, LOW NIOSE 1.5MHZ SYNCHRONOUS STEP-DOWN CONVERTER  DESCRIPTION The UTC UD05158 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with internal power MOSFETs. It offers a very compact solution to achieve a 1.5A continuous output current over from 2.7V to 5.5V input supply range, with excellent load and line regulation. The output voltage is adjustable from 0.6V to the input voltage. During shutdown, the input is disconnected from the output and the shutdown current is less than 1uA. Other key features include over-temperature and short circuit protection, and under-voltage lockout to prevent deep battery discharge. The UTC UD05158 at 1.