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A7208 - DUAL CHANNEL 1.5MHz 800mA EACH CHANNEL SYNCHRONOUS STEP-DOWN DC-DC CONVERTER

Description

The A7208 is a dual constant frequency, 1.5MHz, slope compensated current mode PWM step-down converter working under an input voltage range of 2.5V to 5.5V.

This feature makes the A7208 suitable for single cell Li-ion battery-powered applications.

Features

  • High Efficiency: Up to 96%.
  • 1.5MHz Constant Switching Frequency.
  • Current Mode Operation for Excellent Line and Load Transient Response.
  • No Schottky Diode Required.
  • 2.5V to 5.5V Input Voltage Range.
  • Adjustable Output Voltage.
  • 100% Duty Cycle in Dropout Mode.
  • Output Current: Up to 800mA per Channel.
  • Low Quiescent Current: 180μA each.
  • Over temperature Protection.
  • Short Circuit Protection.
  • Shutdown Quiescent Current < 1μA.
  • Available i.

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Datasheet preview – A7208

Datasheet Details

Part number A7208
Manufacturer AiT Semiconductor
File Size 510.85 KB
Description DUAL CHANNEL 1.5MHz 800mA EACH CHANNEL SYNCHRONOUS STEP-DOWN DC-DC CONVERTER
Datasheet download datasheet A7208 Datasheet
Additional preview pages of the A7208 datasheet.

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Full PDF Text Transcription

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AiT Semiconductor Inc. www.ait-ic.com A7208 DUAL CHANNEL 1.5MHz, 800mA EACH CHANNEL SYNCHRONOUS STEP-DOWN DC-DC CONVERTER DESCRIPTION The A7208 is a dual constant frequency, 1.5MHz, slope compensated current mode PWM step-down converter working under an input voltage range of 2.5V to 5.5V. This feature makes the A7208 suitable for single cell Li-ion battery-powered applications. The internal synchronous rectifier is desired to increase efficiency without an external Schottky diode. 100% duty cycle capability extends battery life in portable devices, while the quiescent current is 180μA at no load, and drops to < 1μA in shutdown. Pulse Skipping Mode operation increases efficiency at light loads, further extending battery life.
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