CT21100 is high efficiency DCDC boost converter delivering 2.7V at 10mA from an input as low as 0.9V. Designed to work with a single alkaline/NiMh coin cell.

To improve efficiency with light load conditions, an asynchronous topology with Pulse Frequency Modulation (PFM) technique is implemented.


  • Input Voltage Range: 0.9V to 1.8V
  • (single alkaline or Ni-MH battery)
  • 10 mA maximum output
  • 18 uA quiescent current with no load
  • Fixed 2.7V output voltage
  • Modulation (PFM) technique


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