BUY S-8520B50MC https://www.utsource.net/itm/p/11290808.html
S-8520B50MC DC/DC Step-Down Converting PMIC 5V SOT-153/SOT23-5 marking ASJ Step-Down Converter
Package: SOT-153/SOT23-5 Manufacturer: SEIKO Description: The S-8520B50MC is a low voltage, low dropout, and low current regulator from SEIKO. It is a three-terminal regulator with a fixed output voltage of 5.0V. Features: Output voltage: 5.0V Low dropout voltage: 0.3V (typical) Low quiescent current: 0.2mA (typical) Output current: 1A (max) Operating temperature range: -40°C to +85°C Output voltage accuracy: ±2.0% Over-current protection Over-temperature protection Applications: Battery-powered systems Automotive systems Portable electronics Industrial systems Consumer electronics (For reference only)