Pin-Compatible Automotive DC/DC Converters

Featured Product from Renesas Electronics Corporation

Pin-Compatible Automotive DC/DC Converters-Image

AEC-Q100 DC/DC Converters Allow Migration from 3A to 5A Without PCB Change

Renesas' ISL78233/34/35 automotive DC/DC converters step-down 5V rails to POL for GPUs, FPGAs, DSPs and SOCs. The highly efficient devices deliver 3A, 4A and 5A of continuous output current to infotainment head units and Advanced Driver Assistance Systems (ADAS) employing forward-looking smart cameras to detect and classify objects.

The pin-compatible ISL78233/34/35 ICs allow you to make a simple BOM change and drop in the right device to your PCB to address the varying load requirements of entry-level to luxury car models.

Key Features

  • Support input voltage range from 2.7V to 5.5V and deliver high efficiency up to 95% 
  • 100ns guaranteed phase minimum on time for wide output regulation
  • Adjustable switching frequency from 500kHz to 4MHz, with 2MHz default
  • External synchronization up to 4MHz
  • Provide 1% reference accuracy for tight regulation, and Internal 1ms soft-start, or adjustable external soft-start
  • Soft-stop output discharge during disable
  • Fault protections include over-temperature, over-current, output over-and under-voltage, input under-voltage lockout, short-circuit, and negative over-current 
  • AEC-Q100 qualified for operation from -40°C to +125°C
  • Wettable flank QFN package allows optical inspection of solder joints for lower manufacturing cost


  • DC/DC POL modules
  • μC/μP, FPGA and DSP power
  • Video processor/SOC power
  • Automotive infotainment power

Product Information