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UD32121 - 1.4MHz STEP-DOWN CONVERTER

Datasheet Summary

Description

The UTC UD32121 is a monolithic step-down switching mode converter with a built-in power MOSFET.

It regulates input voltages from 4.5V to 32V down to an output voltage as low as 0.81V, and supplies up to 1.2A of load current.

Features

  • S.
  • 1.2A Peak Output Current.
  • 0.35Ω Internal Power MOSFET Switch.
  • Stable with Low ESR Output Ceramic Capacitors.
  • Up to 92% Efficiency.
  • 0.1μA Shutdown Mode.
  • Fixed 1.4MHz Frequency.
  • Thermal Shutdown.
  • Cycle-by-Cycle Over Current Protection.
  • Wide 4.5V to 32V Operating Input Range.
  • Output Adjustable from 0.81V to 15V.

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Datasheet preview – UD32121

Datasheet Details

Part number UD32121
Manufacturer UTC
File Size 280.38 KB
Description 1.4MHz STEP-DOWN CONVERTER
Datasheet download datasheet UD32121 Datasheet
Additional preview pages of the UD32121 datasheet.

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Full PDF Text Transcription

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UNISONIC TECHNOLOGIES CO., LTD UD32121 LINEAR INTEGRATED CIRCUIT 1.2A, 32V, 1.4MHz STEP-DOWN CONVERTER  DESCRIPTION The UTC UD32121 is a monolithic step-down switching mode converter with a built-in power MOSFET. It regulates input voltages from 4.5V to 32V down to an output voltage as low as 0.81V, and supplies up to 1.2A of load current. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. The UTC UD32121 requires a minimum number of readily available standard external components.  APPLICATIONS * Distributed Power Systems * Battery Charger * Pre-Regulator for Linear Regulators * WLED Drivers  FEATURES * 1.2A Peak Output Current * 0.
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