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AAT1274 Key Features

  • Input Voltage Range: 2.7V to 5.5V
  • Single Channel Flash Output
  • Up to 1.5A Regulated Output Current
  • Up to 88% Efficiency
  • 2 MHz Switching Frequency
  • Separate Flash Enable
  • Single Resistor Sets Flash and Movie Mode Current
  • AS2Cwire Single Wire Programming
  • Movie Mode Current
  • Flash/Movie Mode Current Ratio

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AAT1274 Description

The AAT1274 is a high-efficiency, 1.5A high-current boost converter for LED photo flash applications. It maintains output current regulation by switching the internal high-side and low-side switch transistors, pulsewidth modulated at a fixed frequency of 2MHz. The high switching frequency allows the use of a small external inductor and output capacitor, making the AAT1274 ideally suited in all single cell,...

AAT1274 Applications

  • Input Voltage Range: 2.7V to 5.5V