ISL8112EVAL1Z

High Light-Load Efficiency, Dual-Output, Main Power Supply Controller Evaluation Board

Description

The ISL8112EVAL1Z evaluation board is designed to evaluate the performance of the ISL8112 dual-output synchronous buck controller.

The ISL8112 dual-output synchronous buck controller with 2A integrated driver features high light load efficiency which is especially preferred in systems concerned with high efficiency in a wide load range, like the battery powered system.

ISL8112 includes on-board power-up sequencing, the power-good outputs, digital soft-start, and internal soft-stop output discharge that prevents negative voltages on shutdown. Additionally, the device is implemented with constant on-time PWM control scheme which need no sense resistors and provides 100ns response to load transients while maintaining a relatively constant switching frequency. The unique ultrasonic pulse-skipping mode maintains the switching frequency above 25kHz, eliminating undesired audible noises in low frequency operation at light load. Other features include pulse skipping which maximizes efficiency in light-load applications, and fixed-frequency PWM mode which reduces RF interference in sensitive applications.

Key Features

  • DC/DC, step down
  • Input voltage: 5.5V to 25V
  • Output voltage: 0.7V to 5.5V
  • Current output: 200mA
  • Lead free/RoHS compliant

Applications

  • Power supply for telecom/datacom and POL
  • System requiring high efficiency in wide load range
  • Compact design with minimum components count
  • PDAs and mobile communication devices
  • 3 and 4-cell Li+ battery-powered devices
  • DDR1, DDR2 and DDR3 applications

 ISL8112EVAL1Z Evaluation Board

ISL8112EVAL1Z Evaluation Board

 

Related Products

ISL8112

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