BD9G101G_EVK: 5V @ 500mA, 6 ~ 42V in

1 января 2018

This application note will provide the steps necessary to operate and evaluate ROHM’s step-down switching regulator using the BD9G101G evaluation boards. Board layout recommendations, operation procedures, application data and build of materials are provided.

This evaluation board has been developed for ROHM’s step-down switching regulator customers evaluating BD9G101G. While accepting a wide power supply of 6-42V, a step down output of 1V-29V can be produced. The IC has an internal 800mohm Nch MOSFET (1A max) and a fixed operating frequency range of 1.5MHz. A Soft Start circuit prevents in-rush current during startup along with UVLO (low voltage error prevention circuit), OCP (over-current protection) and TSD (thermal shutdown detection) protection circuits. An EN pin allows for simple ON/OFF control of the IC to reduce standby current consumption.