商品描述: STMICROELECTRONICS - STEVAL-ISA108V1 - 4A, 850KHz fixed frequency PWM Synchronous Step Down Demo Board based on ST1S41 in VFQFPN package STMICROELECTRONICS - STEVAL-ISA108V1 - 4A, 850KHz fixed frequency PWM Synchronous Step Down Demo Board based on ST1S41 in VFQFPN package