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ETA3456 - COT Synchronous BUCK converter

Description

The ETA3456 is a high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 3A of output current.

The devices operate from an input voltage range of 2.5V to 5.5V and provide output voltages from 0.6V to VIN, making the ETA3456 ideal for low voltage power conversions.

Features

  • Up to 95% Efficiency.
  • Up to 3A Max Output Current.
  • Adaptive COT Control.
  • Ultra-fast load transient response.
  • 2MHz Frequency.
  • High Efficiency PFM mode at light load.
  • 50uA Quiescent Current.
  • 1% Feedback Accuracy.
  • Adjustable Output from 0.6V.
  • Cycle-by-cycle Over Current Protection.
  • Short Circuit Protection with Hiccup Mode.
  • Stable with Low-ESR Output Ceramic Capacitors.
  • Available in SOT563 Package.

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Datasheet preview – ETA3456

Datasheet Details

Part number ETA3456
Manufacturer ETA
File Size 512.39 KB
Description COT Synchronous BUCK converter
Datasheet download datasheet ETA3456 Datasheet
Additional preview pages of the ETA3456 datasheet.

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Full PDF Text Transcription

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ETA3456 2MHz, 3A, COT Synchronous BUCK converter in SOT563 DESCRIPTION The ETA3456 is a high-efficiency, DC-to-DC step-down switching regulator, capable of delivering up to 3A of output current. The devices operate from an input voltage range of 2.5V to 5.5V and provide output voltages from 0.6V to VIN, making the ETA3456 ideal for low voltage power conversions. ETA3456 adopts an Adaptive COT control scheme that enables very fast transient response and provides a very smooth transition when the output varies from light load to heavy load. During light load, ETA3456 goes into a PFM mode that saves switching loss achieving high efficiency. The adaptive COT control also maintains a constant switching frequency across line and load.
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