STLQ50 50 mA, 3 A supply current low drop linear regulator Datasheet - production data Description The STLQ50 is a BiCMOS linear regulator specifically designed for operating in environments where very low power consumption is required. SOT323-5L Its very low quiescent current (3 A) results in extended battery life, making the device suitable for applications which have very long standby time. Features The PMOS pass element allows very good 2.3 V to 12 V input voltage range dropout values (200 mV at 25 mA I and 350 mV O at full load) without affecting the consumption 50 mA maximum output current characteristics. 3 A quiescent current Housed in the very small SOT323-5L, it meets Available in 1.8 V, 2.5 V, 3.3 V, 5.0 V and space-saving requirements in battery-powered adjustable voltage equipment. 200 mV dropout voltage at 25 mA output current Internal thermal protection Available in SOT323-5L package Applications Portable/battery-powered equipment Electronic sensors Microcontroller power Real-time clock backup power Table 1. Device summary SOT323-5L (T&R) Output voltage Marking STLQ50C18R 1.8 V Q18 STLQ50C25R 2.5 V Q25 STLQ50C33R 3.3 V Q33 STLQ50C50R 5.0 V Q50 STLQ50C-R Adjustable QAD July 2019 DocID13205 Rev 7 1/18 This is information on a product in full production. www.st.comContents STLQ50 Contents 1 Block diagram 3 2 Pin configuration 4 3 Maximum ratings 5 4 Electrical characteristics . 6 5 Typical application 7 6 Typical characteristics . 8 7 Application information . 10 7.1 External components 10 7.2 Power dissipation . 10 7.3 Protection 11 8 Package mechanical data 12 9 Packaging mechanical data 15 10 Revision history . 17 2/18 DocID13205 Rev 7