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. The ISL78113A is a fully integrated, internally compensated, synchronous converter optimized to maximize efficiency and reduce the overall solution size and bill of materials. Its high 2MHz switching frequency allows the use of tiny, low-profile inductors and chip capacitors. It also eliminates potential interference within the AM radio band and the external EMI filtering needed for converters switching at lower rates. To minimize power consumption while off, the device features an ultra-low current shutdown mode dropping quiescent current to 50nA typical. ISL78113A is supplied in an 8 Ld DFN package. The device is rated to operate over the temperature range of -40°C to +105°C.


  • Output disconnect during shutdown preventing output precharging and uncontrolled short-circuit current
  • Input voltage range: 0.8V to 4.7V
  • Output current: Up to 500mA (VBAT = 3V, VOUT = 5V)
  • Logic control shutdown (IQ < 1µA)
  • 2MHz switching frequency
  • Up to 95% efficiency at typical operating conditions
  • Fault protection: OVP, OCP, OTP, UVLO
  • 2mmx2mm 8 Ld DFN package
  • Qualified for automotive operations


  • Automotive head units and infotainment systems: especially
  • those including portable HDMI and USB-OTG connectivity
  • Automotive camera systems

Product Options

Part Number Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active DFN Reel 6000
Active DFN Reel 250

Documentation & Downloads

Title Other Languages Type Format File Size Date
Datasheets & Errata
ISL78113A Datasheet Datasheet PDF 902 KB
Application Notes & White Papers
AN1684: Nonideality of Ground Application Note PDF 397 KB
AN1681: Grounding Techniques Application Note PDF 509 KB
PCN14016 - SCM to Carsem Assembly Transfer (Automotive) Product Change Notice PDF 228 KB