Intersil – ISL78113A: High Efficiency Synchronous Boost Converter with 1.3A Switch


The ISL78113A provides a tiny and convenient boost power supply solution to generate a regulated output up to 500mA from any sub-5V secondary rail found in an automotive electrical system, including battery-powered applications (NiCd, NiMH, or one-cell Li-Ion/Li-Polymer). It offers an adjustable output (3.0V to 5.2V) supporting USB-OTG or HDMI applications. The device is able to supply 500mA from a 3V input and 5V output, and has a typical 1.3A peak current limit.


  • 0.8V to 4.7V input voltage range
  • <1μA shutdown current
  • Output disconnect during shutdown
  • OVP, OCP, OTP, UVLO fault protection features
  • Qualified for automotive operations
  • Up to 500mA output current
  • 2MHz switching frequency
  • Up to 95% efficiency at typical operating conditions
  • 2 x 2mm 8-lead DFN package