Fast Transient 400mA Step-Down DC/DC Converter: AAT1146

Source: Skyworks Solutions, Inc.

Fast Transient 400mA Step-Down DC/DC Converter: AAT1146

This 1.4 MHz step-down converter has an input range of 2.7V to 5.5V and an output voltage as low as 0.6V. This converter is ideal for applications involving USB devices, cellular phones, digital cameras, PDAs and handheld computers, microprocessor/DSP/IO power, and handheld instruments. This DC/DC converter is designed to maintain high efficiency throughout its operating range, which is critical for portable applications.

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AAT1146 Step-Down DC/DC Converter Features:

  • VIN Range: 2.7V to 5.5V
  • VOUT Fixed or Adjustable from 0.6V to VIN
  • 27μA No Load Quiescent Current
  • Up to 98% Efficiency
  • 400mA Max Output Current
  • 1.4MHz Switching Frequency
  • 120μs Soft Start
  • Fast Load Transient
  • Over-Temperature Protection
  • Current Limit Protection
  • 100% Duty Cycle Low-Dropout Operation
  • <1μA Shutdown Current
  • SC70JW-8 and SOT23-5 Packages
  • Temperature Range: -40°C to +85°C

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