STMicroelectronics Switching Regulator, Surface Mount, 60V dc Input Voltage, 300mA Output Current, 1 Outputs

The soft-start time is internally fixed and the output voltage supervisor manages the reset phase for any digital load (microcontroller, FPGA, etc.).

The internal compensation network features high noise immunity, simple design and saves on the component cost.

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 capability make the size of the application compact.

Pulse-by-pulse current sensing on both power elements implements an effective constant current protection.

The soft-start time is internally fixed and the output voltage supervisor manages the reset phase for any digital load (microcontroller, FPGA, etc.).

The internal compensation network features high noise immunity, simple design and saves on the component cost.

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 capability make the size of the application compact.

Pulse-by-pulse current sensing on both power elements implements an effective constant current protection.

•3.5 V to 60 V operating input voltage
•Fixed output voltage (3.3 V and 5 V) or adjustable from 0.85 V to VIN
•300 mA DC output current
•Dynamic low consumption mode to low noise mode selection
•10 μA operating quiescent current (L7983PU33R, VIN>24 V, LCM)
•2.3 μA shutdown current
•200 kHz to 2.2 MHz programmable switching frequency
•Optional spread spectrum (dithering)
•Internal soft-start
•Enable / adjustable UVLO threshold
•Synchronization to external clock
•Internal compensation network
•Internal current limiting
•Overvoltage protection
•Output voltage sequencing
•Thermal shutdown
•Pin Count - 10L