40V, 2.5A Synchronous Buck Regulator with Ultra-Low Quiescent Current and Low EMI

A81805

The A81805 provides high-efficiency and low-noise power conversion with up to 2.5A output current. Its ultra-low quiescent current (6µA) extends battery life, while integrated compensation and spread spectrum minimize external components and EMI.

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Top Features

Packaging

  • Wide input voltage range: 3.5V to 40V
  • AEC-Q100 Grade 0 qualified
  • High efficiency: 92%, 12 to 5V at 1A
  • Low EMI: spread spectrum dithering
  • Wide switching frequency range: 250kHz to 2.5MHz
  • Up to 2.5A continuous output current

Typical Applications:

 

20-contact QFN (suffix ES) 4 mm × 4 mm × 0.75 mm with exposed thermal pad and wettable flank.

ES Package Documentation

Part Number Specifications and Availability

Documentation and Resources

Documentation

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