BUY LS1240AD1 https://www.utsource.net/itm/p/4786401.html
ELECTRONIC TWO - TONE RINGER
Description: Low-Dropout Voltage Regulator Features: Low Dropout Voltage: 0.3V (Typ.) at 100mA Output Output Voltage Accuracy: ±2% Output Current: 100mA Output Voltage Range: 1.5V to 5.0V Low Quiescent Current: 10μA (Typ.) Low Temperature Coefficient: 0.03%/°C (Typ.) Fast Transient Response Short Circuit Protection Over Temperature Protection Reverse Current Protection Internal Thermal Shutdown Available in SOP-8 Package Application: Battery-Powered Systems Portable Devices Mobile Phones Digital Cameras PDAs Handheld Computers Notebook Computers LCD Displays Automotive Applications (For reference only)