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L6982
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38 V, 2 A synchronous step-down converter with 20 µA quiescent current

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Product overview

Description

The L6982 is an easy to use synchronous monolithic step-down regulator capable of delivering up to 2 A DC to the load. The wide input voltage range makes the device suitable for a broad range of applications. The L6982 is based on a peak current mode architecture and is packaged in an SO 8L with internal compensation, thus minimizing design complexity and size.

The L6982 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 lightload operations, meeting the specification for low noise sensitive applications.

The EN pin provides enable/disable functionality.

The typical shutdown current is 2 μA when disabled. As soon as the EN pin is pulled up the device is enabled and the internal 1.3 ms soft-start takes place.

Pulse-by-pulse current sensing on both power elements implements an effective constant current protection and thermal shutdown prevents thermal run-away.

  • All features

    • 3.5 V to 38 V operating input voltage
    • Output voltage from 0.85 V to VIN
    • 3.3 / 5 V fixed output voltage versions
    • 2 A DC output current
    • Internal compensation network
    • 20 μA operating quiescent current
    • Two different versions: LCM for high efficiency at light-loads and LNM for noise sensitive applications
    • 2 μA shutdown current
    • Internal soft-start
    • High voltage VIN compatible Enable
    • Overvoltage protection
    • Output voltage sequencing
    • Thermal protection
    • Synchronization to external clock for LNM devices
    • SO 8L package
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STMicroelectronics - L6982

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SIMPLIS models (1)

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L6982 SIMPLIS examples schematics
2025.07 09 Jul 2025
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09 Jul 2025
L6982 SIMPLIS examples schematics 2025.07

Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Longevity Commitment Longevity Starting Date Material Declaration**
L6982C33DR
Active
SO-8 Industrial Ecopack2 10 2023-06-06T00:00:00.000+02:00
L6982C50DR
Active
SO-8 Industrial Ecopack2 10 2023-06-06T00:00:00.000+02:00
L6982CDR
Active
SO-8 Industrial Ecopack2 10 2023-06-06T00:00:00.000+02:00
L6982N33DR
Active
SO-8 Industrial Ecopack2 10 2023-06-06T00:00:00.000+02:00
L6982N50DR
Active
SO-8 Industrial Ecopack2 10 2023-06-06T00:00:00.000+02:00
L6982NDR
Active
SO-8 Industrial Ecopack2 10 2023-06-06T00:00:00.000+02:00

L6982C33DR

Package:

SO-8

Material Declaration**:

More Info

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982C50DR

Package:

SO-8

Material Declaration**:

More Info

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982CDR

Package:

SO-8

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982N33DR

Package:

SO-8

Material Declaration**:

More Info

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982N50DR

Package:

SO-8

Material Declaration**:

More Info

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982NDR

Package:

SO-8

Material Declaration**:

PDF XML
More Info

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors

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