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L6983

STMicroelectronics
Part Number L6983
Manufacturer STMicroelectronics
Description 38V 3A synchronous step-down converter
Published Mar 2, 2020
Detailed Description L6983 Datasheet 38 V, 3 A synchronous step-down converter with 17 µA quiescent current QFN16 (3 x 3 mm) Maturity status...
Datasheet PDF File L6983 PDF File

L6983
L6983

Overview
L6983 Datasheet 38 V, 3 A synchronous step-down converter with 17 µA quiescent current QFN16 (3 x 3 mm) Maturity status link L6983 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 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.
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.
LNM makes the switching frequency constant and minimizes the output voltage ripple for light load operations, meeting the specification for low noise sensitive applications.
The L6983 allows the switching frequency to be selected in the 200 kHz - 2.
3 MHz range with optional spread spectrum for improved EMC.
DS13116 - Rev 3 - December 2022 For further information contact your local STMicroel...


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