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STMicroelectronics L6983 38V 3A step-down converter

L6983 is an easy to use synchronous monolithic step-down regulator capable of delivering up to 3 A DC to the load

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 3 x 3 with internal compensation thus minimizing design complexity and size.

2 versions are available :

- LCM (low consumption mode) to maximize the efficiency at light-load with controlled output voltage ripple.

- LNM (low noise mode) with switching frequency constant and minimized output voltage ripple.

Features

3.5 V to 38 V Operating Input Voltage
17 μA Quiescent Current
LCM (Low Consumption Mode) Version for High Efficiency at Light Loads
LNM (Low Noise Mode) Version for Noise-sensitive Applications

Additional features

Output voltage from 0.85 V to VIN
3.3 V and 5 V fixed output voltage versions
3 A DC output current
Internal compensation network
2 μA shutdown current
Internal soft-start
Enable
Overvoltage protection
Output voltage sequencing
Thermal protection
200 kHz to 2.2 MHz programmable switching frequency. Stable with low ESR capacitor
Optional spread spectrum for improved EMC
Power Good
Synchronization to an external clock for LNM devices
QFN16 package