STEVAL-L7983ADJ

STEVAL-L7983ADJ is a step-down switching power supply evaluation board. It is based on the L7983PUR regulator. The selected switching frequency is 1MHz and can be adjusted by external clock or programming resistor. The step-down monolithic switching regulator can deliver up to 300mA DC based on peak current mode architecture. L7983 supports dynamic Low Consumption Mode (LCM) to Low Noise Mode (LNM) transition. LCM is designed for applications with active idle mode to maximize the efficiency at light load with controlled output voltage ripple, while LNM keeps the switching frequency constant over the load current range for low noise applications. The soft start time is internally fixed and the output voltage supervisor manages the reset phase for any digital load (MCU, FPGA). The synchronous rectification, designed for high efficiency at medium to heavy loads and the high switching frequency capability contribute to size reduction in final application designs.

• 12V to 60V operating input voltage
• DFN10 3x3mm package with 12V set output voltage
• 1MHz selected switching frequency
• Dynamic low consumption mode to low noise mode selection
• Internal soft-start
• Synchronization to external clock
• Internal compensation network
• Auto recovery overcurrent, overvoltage and thermal protection