RICHTEK
芯片, 直流/直流转换器, 降压稳压器, 1.5MHZ, WDFN-12
LINEAR TECHNOLOGY
芯片, 升压稳压器, 同步, 可调, 550mA, 12DFN
ON SEMICONDUCTOR
芯片, 直流/直流转换器, 同步升压, 1.74MHZ, TDFN-12