Integrated 4A Switch PWM Step-Up Regulator Evaluation Board

The ISL97656IRTZEVALZ is an evaluation kit for the ISL97656 step-up voltage regulator that operates with high frequency and high efficiency. This evaluation kit is designed to deliver up to 2A output current for portable equipment and TFT-LCD displays. A dip switch that allows users to select either a 620kHz or 1.2MHz frequency is provided in the kit.

The ISL97656 is a high-frequency, high-efficiency step-up voltage regulator operated at constant frequency PWM mode. With an internal 4.0A, 120mΩ MOSFET, it can deliver up to 2A of output current at over 90% efficiency. The selectable 640kHz and 1.2MHz allow smaller inductors and faster transient response. An external compensation pin gives the user greater flexibility in setting frequency compensation, allowing the use of low-ESR ceramic output capacitors.