STMicroelectronics L6983
The L6983 is an easy to use synchronous monolithic step-down regulator capable of delivering up to 3 A DC to the load. The wide input voltage range makes the device suitable for a broad range of applications. The L6983 is based on a peak current mode architecture and is packaged in a QFN16 3x3 with internal compensation thus minimizing design complexity and size.FEATURES
● 3.5 V to 38 V operating input voltage● Output voltage from 0.85 V to VIN
● 3.3 V and 5 V fixed output voltage versions
● 3 A DC output current
● 17 μA operating quiescent current
● Internal compensation network
● Two different versions: LCM for high efficiency at light loads and LNM for noise sensitive applications
● 2 μA shutdown current
● Internal soft-start
● Enable
● Overvoltage protection
● Output voltage sequencing
● Thermal protection
● 200 kHz to 2.3 MHz programmable switching frequency. Stable with low ESR capacitor
● Optional spread spectrum for improved EMC
● Power Good
● Synchronization to external clock for LNM devices
● QFN16 package
APPLICATIONS
● Designed for 24 V buses industrial power systems● 24 V battery powered equipment
● Decentralized intelligent nodes
● Sensors and always-on applications
● Low noise applications
DESCRIPTION
The L6983 is available both in low consumption mode (LCM) and low noise mode (LNM) versions. LCM maximizes the efficiency at light-load with controlled output voltage ripple so the device is suitable for battery-powered applications.