BUY MAX887HCSA https://www.utsource.net/itm/p/931312.html
100% Duty Cycle, Low-Noise, Step-Down, PWM DC-DC Converter
Description: The MAX887HCSA is a low-dropout (LDO) linear regulator with a low quiescent current of only 200μA. It provides a fixed output voltage of 5V and can deliver up to 500mA of output current. Features: Low quiescent current of 200μA Fixed 5V output voltage Output current up to 500mA Low dropout voltage of only 0.5V Reverse-battery protection Thermal shutdown protection Overcurrent protection Short-circuit protection Available in SOP-8 package Applications: Battery-powered systems Automotive systems Portable electronics Industrial systems Medical systems (For reference only)