The L4971 is a step down monolithic power switching regulator delivering 1.5A at a voltage be- tween 3.3V and 50V (selected by a simple external divider).
E-L4971D013TR ; Frequency - Switching. 100kHz ~ 300kHz ; Synchronous Rectifier. No ; Operating Temperature. -40°C ~ 150°C (TJ) ; Mounting Type. Surface Mount.