STEVAL-ISA156V1 STMicroelectronics

STEVAL-ISA156V1 38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6986 Data brief 30 A IQ at light load (LCM V = 3.3 V) OUT 5 A I Q-SHTDWN Adjustable f (250 kHz - 2 MHz) SW Output voltage adjustable from 0.85 V to V IN Embedded output voltage supervisor Synchronization Adjustable soft-start time Internal current limiting Overvoltage protection Output voltage sequencing Peak current mode architecture R = 180 m, R = 110 m DS(on) HS DS(on) LS Thermal shutdown Description The STEVAL-ISA156V1 is a product evaluation board based on ST s L6986, a 38 V, 2 A synchronous step-down switching regulator with 30 A quiescent current. It can be used for 12 V Features and 24 V buses, programmable logic controllers (PLCs), decentralized intelligent nodes & sensors 4 V to 38 V operating input voltage and low noise applications (LNM). Low consumption mode or low noise mode July 2014 DocID026706 Rev 1 1/4 www.st.com For further information contact your local STMicroelectronics sales office Schematic diagram STEVAL-ISA156V1 1 Schematic diagram Figure 1: STEVAL-ISA156V1 circuit schematic 2/4 DocID026706 Rev 1