BUY MAX1607ESA+ https://www.utsource.net/itm/p/4851000.html
IC SW USB CURRENT LIMIT 8SOIC
Description: Low-Dropout (LDO) Linear Regulator Features: Low Dropout Voltage: 300mV (Typ) at 150mA Low Quiescent Current: 300μA (Typ) Output Voltage Range: 1.5V to 5.5V Output Current: 150mA Low Noise: 40μVRMS (Typ) at 150mA Fast Transient Response: 0.2μs (Typ) Overcurrent Protection Thermal Shutdown Available in SOT-23, SOP-8, and μMAX Packages Applications: Cellular Phones Digital Cameras PDAs Portable Instruments Battery-Powered Systems Notebook Computers (For reference only)