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ETA3458 - COT Synchronous BUCK Converter

Description

The ETA3458 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 ETA3458 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.
  • Forced PWM Mode.
  • 2MHz Frequency.
  • 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.
  • RoHS Compliant.

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Datasheet preview – ETA3458

Datasheet Details

Part number ETA3458
Manufacturer ETA
File Size 717.31 KB
Description COT Synchronous BUCK Converter
Datasheet download datasheet ETA3458 Datasheet
Additional preview pages of the ETA3458 datasheet.

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Full PDF Text Transcription

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ETA3458 2MHz, 3A, COT Synchronous BUCK Converter in SOT563 DESCRIPTION The ETA3458 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 ETA3458 ideal for low voltage power conversions. ETA3458 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. The adaptive COT control also maintains a constant switching frequency across line and load. Running at a fixed frequency of 2MHz allows the use of small inductance value and low DCR inductors, thereby achieving higher efficiencies.
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