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AS1349 Buck Converter

Dual 1.2A and 1.2A Step Down Converter

The AS1349 is a synchronous dual buck converter, capable of driving 2x 1.2A between 1.2V to 3.6V output. With efficiencies up to 95%, the device operates between 2.7V to 5.5V input.

Block diagram of the AS1349 Buck Converter

Key Features

  • Factory programmable output voltage
  • 2x 1200mA @ 1.2V to 3.6V
  • 180deg out pf phase operation

Key Benefits

  • Customisable
  • High power, small footprint
  • Load current averaging on input

AS1349 Applications

  • SSD Applications
  • Mobile Communication Devices
  • Laptops and PDAs
  • Ultra Low Power Systems
  • Threshold Detectors/Discriminators
  • Telemetry and Remote Systems
  • Medical Instruments
  • Space Limited Applications with Low Power Consumption Requirements

AS1349 Product Facts

Input voltage [V] 2.7 to 5.5
Output voltage [V] 1.2 to 3.6
Output current [mA] 1200 and 1200
Efficiency [%] 95
Iq [μA] 2000
Architecture fixed frequency, sync.
fmax [kHz] 2000
Enable/SHDN [ ]
Reset [POK]
Features Fixed output voltage
Package TDFN-12 (3x3)