RICHTEK
芯片, 直流/直流转换器, 降压, 3MHZ, WLCSP-15
MAXIM INTEGRATED PRODUCTS
直流-直流开关同步降压稳压器, 可调, 2.5V-5.5V输入, 0.3V-5V/4A输出, 4000 kHz, TQFN-28