ISL8118EVAL1Z

3.3V to 20V Single-Phase PWM Controller with Integrated 2A/4A MOSFET Driver Evaluation Board

Description

The ISL8118EVAL1Z evaluation board highlights the operations of the ISL8118 PWM controller in a DC/DC application.

The ISL8118 is a single-phase PWM controller for a synchronous buck converter with an integrated MOSFET driver that operates from +3.3V to +20V bias supply voltage. Utilizing voltage-mode operation with input voltage feed-forward compensation, the ISL8118 maintains a constant loop gain, providing optimal transient response for applications with a wide input operating voltage range

The controller features the ability to safely start-up into prebiased output loads and provides protection against overcurrent fault events. Overcurrent protection is implemented using both topside and bottomside MOSFET rDS(ON) sensing, eliminating the need for a current sensing resistor. Dual sensing allows the ISL8118 to detect overcurrent faults at the very low and very high duty cycles that can result from the ISL8118’s wide input range.

Key Features

  • DC/DC, step down
  • Optimal input voltage: 9.6V to 14.4V
  • Output voltage: 1.8V
  • Typical output voltage ripple: 30mV
  • Continuous load current (max): 25A
  • Switching frequecy: 300kHz
  • Lead free/RoHS compliant

Applications

  • Telecom and datacom servers
  • Point-of-load modules
  • Routers and switchers

ISL8118EVAL1Z Evaluation Board

ISL8118EVAL1Z Evaluation Board

 

Related Products

ISL8118

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