L7983 Overview
The L7983 device is a step-down monolithic switching regulator able to deliver up to 300 mA DC based on peak current mode architecture. The output voltage adjustability ranges from 0.85 V to VIN. The wide input voltage range and adjustable UVLO threshold meet the specification for the 12 V, 24 V and 48 V industrial bus standards.
L7983 Key Features
- 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
L7983 Applications
- Designed for 12 V, 24 V and 48 V buses