+5V or +12V Single-Phase Synchronous Buck Converter PWM Controller Evaluation Boards


The ISL8105BEVAL1Z (8 Ld SOIC), ISL8105BEVAL2Z (10 Ld DFN) evaluation boards highlight the operation of the ISL8105B controller in a DC/DC application. The ISL8105B is a simple single-phase PWM controller for a synchronous buck converter that operates from +5V or +12V bias supply voltage. With integrated linear regulator, boot diode, and gate drivers, the ISL8105B reduces external component count and board space requirements.

Key Features

  • Operates from +5V or +12V Bias Supply Voltage
  • 0.6V Internal Reference Voltage
  • Integrated MOSFET Gate Drivers that Operate from VBIAS (+5V to +12V)
  • Simple Voltage-Mode PWM Control
  • Fast Transient Response
  • Fixed 300kHz Operating Frequency
  • Fixed Internal Soft-Start with Pre-biased Load Capability
  • Lossless, Programmable Overcurrent Protection
  • Enable/Disable Function Using COMP/EN Pin
  • Output Current Sourcing and Sinking Currents


  • 5V or 12V DC/DC Regulators
  • Industrial Power Systems
  • Telecom and Datacom Applications
  • Test and Measurement Instruments
  • Distributed DC/DC Power Architecture
  • Point of Load Modules

ISL8105BEVAL1Z Buck Converter PWM Controller Eval Board

ISL8105BEVAL1Z Buck Converter PWM Controller Eval Board


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