The efficiency of an LDO regulator with Vin=8V, Vout=5V at 100mA, compared to a standard linear regulator, is: A: Better (higher) B: Same C: Worse (lower) D: Irrelevant because the LDO can only operate with Vin close to Vout 为什么选B啊,个人觉得选C还能说通, efficiency=Iin*Vin/(Iout+Ignd)*Vout |