Intersil – New ISL8117EVAL1Z and ISL8117EVAL2Z evaluation boards for 60V synchronous step-down PWM controller


ISL8117 eval boards: accept input voltages up to 60V

The ISL8117EVAL1Z and ISL8117EVAL2Z development boards enable designers to evaluate the performance of the ISL8117, a 60V synchronous buck controller from Intersil.

The ISL8117 offers external soft-start and independent enable functions, and integrates various circuit-protection features. Its current-mode control architecture and internal compensation network keep peripheral component count to a minimum.

The device’s programmable switching frequency, which ranges from 200kHz to 2MHz, gives the designer the flexibility to optimise the balance between inductor size, power consumption and noise.

Both the ISL8117EVAL1Z and ISL8117EVAL2Z evaluation boards are designed for high-current applications, and accommodate a wide inputvoltage range of 4.5V to 60V, in the case of the ISL8117EVAL1Z, and 18V to 60V for the ISL8117EVAL2Z. The current rating of the ISL8117EVAL2Z is limited by the FETs and inductor selected. The ISL8117 gate driver is capable of delivering up to 20A for the buck output as long as the proper FETs and inductor are provided.


  • High light-load efficiency
  • Supports pre-bias output with soft-start
  • External frequency synchronisation
  • Power Good indicator
  • Back-biased from output to improve efficiency


  • Factory automation
  • Security equipment
  • Servers and data centres
  • Switches and routers
  • LED panels


Orderable Part Numbers: ISL8117EVAL1Z and ISL8117EVAL2Z