The APL5317-12BI-TRG is a Low Dropout Regulator (LDO) manufactured by Anpec in a SOT-23-5, RoHS-compliant package. It is a very efficient and stable voltage regulator with a maximum dropout voltage of 100 mV and output voltage tolerance of ±2%. The APL5317-12BI-TRG features low temperature coefficient, low quiescent current, and fast transient response. It offers protection against current, short circuit, and overheating, making it suitable for a wide range of applications such as cellular phones, PDAs, digital cameras, and other portable equipment.