Микросхемы и комплектующие STEVAL-L7983V33

Evaluation Kit , L7983PU33R, Power Management, Step Down DC / DC Converter

STEVAL-L7983V33 product evaluation board is a step-down switching power supply based on the L7983PU33R regulator in a DFN10 3x3mm package with fixed 3.3V output voltage. The programmed switching frequency is 1 MHz and it can be adjusted by applying an external clock on LNM/LCM pin or by changing the frequency programming resistor. The L7983 device is a step-down monolithic switching regulator able to deliver up to 300mA DC based on peak current mode architecture. The wide input voltage range and adjustable UVLO threshold meet the specification for the 12V, 24V and 48V industrial bus standards. L7983 supports dynamic Low Consumption Mode (LCM) to Low Noise Mode (LNM) transition. LCM is designed for applications which remain active in idle mode to maximize the efficiency under light load condition with controlled output voltage ripple. LNM makes the switching frequency constant over load current range, meeting the low noise application specification.

• Internal soft-start
• Synchronization to external clock
• Internal compensation network
• Auto recovery overcurrent, overvoltage and thermal protection