Monolithic switching regulator : L6986

The L6986 device is a step-down monolithic  switching regulator able to  deliver up to 2 A DC. The output voltage adju stability ranges from  0.85 V to VIN. Thanks to  the P-channel MOSFET  high-side power element, the device features  100% duty cycle operation.

The wide input  voltage range meets the specification for the 5 V, 12 V and 24 V power supplies. The “Low  Consumption Mode” (L CM) is designed for  applications active duri ng idle mode, so it  maximizes the efficiency at light load with  controlled output voltage ripple.

The “Low Noise  Mode” (LNM) makes the switching frequency  constant overload current range, meeting the low  noise application specification.The output voltage supervisor manages the reset phase for any digital load ( μ C, FPGA, etc.). The RST open collector output can also implement output voltage sequencing during the power-up phase. 

The synchronous rectification, designed for high efficiency at medium -  heavy load, and the high switching frequency capab ility make the size of the application compact. Pulse by pulse current  sensing on both power elements implements an effective constant current protection.