APL5315

APL5315 Selectable Adjustable/Fixed Low dropout 300mA Linear Regulator Features Wide Operating Voltage: 2.8~6V Low Dropout Voltage: 230mV(typical) @ 300mA Guaranteed 300mA Output Current Two Modes for Setting Output Voltage - Fixed Output Voltage: 1~5V - Adjustable Output Voltage: 0.8~5.5V Current Limit Protection with Foldback Current Internal Soft-Start Over Temperature Protection Stable with Low ESR Ceramic Capacitor SOT-23-5 Package Lead Free and Green Devices Available (RoHS Compliant) Simplified Application Circuit VIN CIN APL5315 3 VIN VOUT 4 1 SHDN SET 5 GND 2 VOUT COUT General Description The APL5315 is a P-channel low dropout linear regulator which needs only one input voltage from 2.8~6V, and delivers current up to 300mA to set output voltage. It also can work with low ESR ceramic capacitors and is ideal for using in the battery-powered applications such as notebook computers and cellular phones. Typical dropout voltage is only 230mV at 300mA loading. The APL5315 provides two kinds of output voltage operation modes for setting the output voltage. Fixed output voltage mode senses the output voltage on VOUT, adjustable output voltage mode needs two resistors as a voltage divider. Current limit with current foldback and thermal shutdown functions protect the device against current over-loads and over temperature. The APL5315 is available in a SOT-23-5 package. Applications Cellular Phones Portable and Battery-powered Equipment Notebook ...