The NJM2871BF04 from Nisshinbo Micro Devices is a LDO Voltage Regulator with Input Voltage 14 V, Output Voltage 4 V, Dropout Voltage 100 to 180 mV, Output Current 0.15 to 0.2 A, Quiescent Current 0.12 to 0.18 mA. Tags: Surface Mount. More details for NJM2871BF04 can be seen below.