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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

STMicroelectronics L6983 series product image

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

 

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

 

Available tools

STEVAL-ISA208V1

  • 38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983CQTR

STEVAL-ISA209V1

  • 38 V, 3 A synchronous step-down switching regulator evaluation board based on the L6983NQTR

STMicroelectronics L6983 38V 3A Step-down Converter | EBV Elektronik

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