Micrel – MIC23163/MIC23164: 4MHz, 2A DC/DC Converter with 100% Duty Cycle Capability

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MIC23163/MIC23164: 4MHz, 2A DC/DC Converter with 100% Duty Cycle Capability

The MIC23163/MIC23164 are 4MHz DC/DC converters with HyperLight Load® (HLL) mode and capable of delivering up to 2A in a small 2 x 2mm package. These switching regulators operate from 2.7V to 5.5V with the capability of operating up to 100% duty cycle. The MIC23163/4 has a very low quiescent current of 33µA and achieves as high as 85% efficiency at 1mA. At higher loads, the MIC23163/4 provides a constant switching frequency around 4MHz while achieving peak efficiencies up to 93%.

FEATURES

  • 2.7V to 5.5V input voltage
  • 2A output current
  • 85% typical efficiency at 1mA
  • Programmable soft start with pre-bias start-up capability
  • Ultra-fast transient response
  • Thermal shutdown and current limit protection
  • 100% duty cycle
  • Up to 93% peak efficiency
  • 0.6V to 5.5V adjustable output voltage
  • Power good (PG) indicator
  • 10-pin 2.0 × 2.0mm thin DFN
  • 1k MSRP: $1.10 US

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