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

Download datasheet Order Direct

製品概要

概要

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.

  • 特徴

    • 3.5 V to 38 V operating input voltage
    • Output voltage from 0.85 V to VIN
    • 2 A DC output 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
    • 有効にする
    • Overvoltage protection
    • Output voltage sequencing
    • Thermal protection
    • Synchronization to external clock for LNM devices
    • SO 8L package

eDesignSuite

eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.

Power Management Design Center

Thermal-electrical Simulators for Components

Signal Conditioning Design Tool

NFC/RFID Calculators

Choose design tool:
Power Management Design Center

Power Supply Design Tool

SMPS design, by topology, by type and by product
PFC design with analog and digitial control
Supports various PCB configurations
Choose type:
DC/DC
AC/DC
太陽光発電システム
Power Management Design Center

LED Lighting Design Tool

Handles AC-DC and DC-DC design in common topologies
Displays interactive and annotated schematic
Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data
Choose type:
DC/DC
AC/DC
Power Management Design Center

Digital Power Workbench

Provides a step-by-step optimized design of power section and control loop
Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs
Power Management Design Center

Power Tree Designer

Specify input/output power for each node in the tree
Check for consistency
Design each individual node
Choose design tool:
Thermal-electrical Simulators for Components

AC Switches Simulator

Select ratings and application waveforms
Get junction temperature and blocking voltage graphs
Search and sort suitable devices
Thermal-electrical Simulators for Components

Rectifier Diodes Simulator

Select ratings and application waveforms
Estimate power losses
Search and sort suitable devices
Thermal-electrical Simulators for Components

STPOWER Studio

Supports long mission profiles
Provides power loss and temperature graphs
Helps define heatsink thermal properties
Thermal-electrical Simulators for Components

Twister Sim

Help select the right ViPOWER Automotive power device
Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis
Supports various PCB configurations
Thermal-electrical Simulators for Components

TVS Simulator

Specify system ratings and surge waveform
Search and sort suitable devices
Thermal-electrical Simulators for Components

Estimate

Build simple schematics and firmware inputs in minutes
Quickly generate reliable estimates of battery life, system power consumption and bill of materials costs
Thermal-electrical Simulators for Components

PCB Thermal Simulator

Thermal analysis of a PCB from Gerber files.
Possibility to add heat sources, heat sinks, copper areas and thermal paths.
Powerful server-side engine for rendering and simulation.
Thermal results shown graphically via 2D table.
Choose design tool:
Signal Conditioning Design Tool

Active Filters

Handles multi-stage-designs and common topologies
Returns circuit component values
Provides gain, phase and group delay graphs
Low Pass, High Pass and Band Pass
Signal Conditioning Design Tool

Comparators

Handles most common configurations
Returns circuit components values
Provides I/O signal waveforms
Inverting, Non Inverting, Window
Signal Conditioning Design Tool

Low side Current Sensing

Returns circuit component values
Provides current error graphs
Signal Conditioning Design Tool

High side Current Sensing

Provides current error graphs.
Help to select the right High side current sensing and shunt devices.
Choose design tool:
NFC/RFID Calculators

NFC Inductance

Input geometry and substrate properties
Get antenna impedance
NFC/RFID Calculators

UHF Link Budget

Enter forward and reverse link characteristics
The tool returns link budget estimate
NFC/RFID Calculators

NFC Tuning Circuit

Enter antenna parameter and matching target
Select the topology of the matching network
The tool returns component values for the desired design targets

おすすめ製品

All tools & software

    • 製品型番
      ステータス
      概要
      タイプ
      サプライヤ

      STSW-eDSim

      量産中

      eDSim: fast and powerful electrical simulation software for SMPS and analog ICs

      評価ツール用ソフトウェア ST
      STSW-eDSim

      概要:

      eDSim: fast and powerful electrical simulation software for SMPS and analog ICs
    • 製品型番
      ステータス
      概要
      タイプ
      サプライヤ

      STEVAL-L6982CDR

      量産中

      38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982CDR

      電源&コンバータ・ソリューション用評価ボード ST
      STEVAL-L6982CDR

      概要:

      38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982CDR

      STEVAL-L6982NDR

      量産中

      38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982NDR

      電源&コンバータ・ソリューション用評価ボード ST
      STEVAL-L6982NDR

      概要:

      38 V, 2 A synchronous step-down switching regulator evaluation board based on the L6982NDR

EDAシンボル / フットプリント / 3Dモデル

STマイクロエレクトロニクス - L6982

Speed up your design by downloading all the EDA symbols, footprints and 3D models for your application. You have access to a large number of CAD formats to fit with your design toolchain.

Please select one model supplier :

Symbols

EDAシンボル

Footprints

フットプリント

3D model

3Dモデル

品質 & 信頼性

製品型番 マーケティング・ステータス パッケージ グレード RoHSコンプライアンスグレード 材料宣誓書**
L6982C33DR
量産中
SO-8 インダストリアル Ecopack2
L6982C50DR
量産中
SO-8 インダストリアル Ecopack2
L6982CDR
量産中
SO-8 インダストリアル Ecopack2
L6982N33DR
量産中
SO-8 インダストリアル Ecopack2
L6982N50DR
量産中
SO-8 インダストリアル Ecopack2
L6982NDR
量産中
SO-8 インダストリアル Ecopack2

L6982C33DR

Package:

SO-8

Material Declaration**:

Marketing Status

量産中

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982C50DR

Package:

SO-8

Material Declaration**:

Marketing Status

量産中

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982CDR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

量産中

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982N33DR

Package:

SO-8

Material Declaration**:

Marketing Status

量産中

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982N50DR

Package:

SO-8

Material Declaration**:

Marketing Status

量産中

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6982NDR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

量産中

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.comで提供している材料宣誓書は、パッケージ・ファミリ内で最も一般的に使用されているパッケージに基づく汎用ドキュメントの場合があります。そのため、特定の製品では100%正確ではない可能性があります。特定の製品情報については、セールスサポートまでお問い合わせください

サンプル & 購入

Loading...
Swipe or click the button to explore more details Don't show this again
製品型番
製品ステータス
Budgetary Price (US$)*/Qty
STから購入
Order from distributors
パッケージ
梱包タイプ
RoHS
Country of Origin
ECCN (US)
ECCN (EU)
Operating temperature (°C)
最小
最大
L6982N50DR
量産中
0.97 / 10k
Available at 4 distributors

販売代理店在庫 L6982N50DR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 266 1
ANGLIA Live EUROPE 2500 1
MOUSER WORLDWIDE 2377 1
DIGIKEY WORLDWIDE 2262 1

販売代理店在庫データ: 4/9/2025

SO-8 Tape and Reel CHINA EAR99 NEC -40 150
L6982CDR
量産中
0.97 / 10k
Available at 5 distributors

販売代理店在庫 L6982CDR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 1734 1
ANGLIA Live EUROPE 4760 1
MOUSER WORLDWIDE 2387 1
AVNET AMERICA 15000 0
DIGIKEY WORLDWIDE 6771 1

販売代理店在庫データ: 4/9/2025

SO-8 Tape and Reel CHINA EAR99 NEC -40 150
L6982NDR
量産中
0.97 / 10k
Available at 4 distributors

販売代理店在庫 L6982NDR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 58 1
ANGLIA Live EUROPE 20000 1
MOUSER WORLDWIDE 3769 1
DIGIKEY WORLDWIDE 67 1

販売代理店在庫データ: 4/9/2025

SO-8 Tape and Reel CHINA EAR99 NEC -40 150
L6982N33DR
量産中
0.97 / 10k
Available at 4 distributors

販売代理店在庫 L6982N33DR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 266 1
ANGLIA Live EUROPE 2500 1
MOUSER WORLDWIDE 2278 1
DIGIKEY WORLDWIDE 2246 1

販売代理店在庫データ: 4/9/2025

SO-8 Tape and Reel CHINA EAR99 NEC -40 150
L6982C50DR
量産中
0.97 / 10k
Available at 3 distributors

販売代理店在庫 L6982C50DR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 59 1
ANGLIA Live EUROPE 2600 1
MOUSER WORLDWIDE 2259 1

販売代理店在庫データ: 4/9/2025

SO-8 Tape and Reel CHINA EAR99 NEC -40 150
L6982C33DR
量産中
0.97 / 10k
Available at 3 distributors

販売代理店在庫 L6982C33DR

販売代理店
地域 在庫 最小発注数量 パートナー企業リンク
Farnell Element14 EUROPE 2645 1
ANGLIA Live EUROPE 2600 1
MOUSER WORLDWIDE 2124 1

販売代理店在庫データ: 4/9/2025

SO-8 Tape and Reel CHINA EAR99 NEC -40 150

L6982N50DR 量産中

Budgetary Price (US$)*/Qty:
0.97 / 10k
パッケージ:
SO-8
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L6982N50DR

Operating Temperature (°C)

最小:

-40

最大:

150

販売代理店

Farnell Element14

在庫

266

Min.Order

1

ANGLIA Live

在庫

2500

Min.Order

1

MOUSER

在庫

2377

Min.Order

1

地域

WORLDWIDE Buy from Distributor

DIGIKEY

在庫

2262

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 4/9/2025

L6982CDR 量産中

Budgetary Price (US$)*/Qty:
0.97 / 10k
パッケージ:
SO-8
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L6982CDR

Operating Temperature (°C)

最小:

-40

最大:

150

販売代理店

Farnell Element14

在庫

1734

Min.Order

1

ANGLIA Live

在庫

4760

Min.Order

1

MOUSER

在庫

2387

Min.Order

1

地域

WORLDWIDE Buy from Distributor

AVNET

在庫

15000

Min.Order

0

地域

AMERICA Buy from Distributor

DIGIKEY

在庫

6771

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 4/9/2025

L6982NDR 量産中

Budgetary Price (US$)*/Qty:
0.97 / 10k
パッケージ:
SO-8
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L6982NDR

Operating Temperature (°C)

最小:

-40

最大:

150

販売代理店

Farnell Element14

在庫

58

Min.Order

1

ANGLIA Live

在庫

20000

Min.Order

1

MOUSER

在庫

3769

Min.Order

1

地域

WORLDWIDE Buy from Distributor

DIGIKEY

在庫

67

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 4/9/2025

L6982N33DR 量産中

Budgetary Price (US$)*/Qty:
0.97 / 10k
パッケージ:
SO-8
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L6982N33DR

Operating Temperature (°C)

最小:

-40

最大:

150

販売代理店

Farnell Element14

在庫

266

Min.Order

1

ANGLIA Live

在庫

2500

Min.Order

1

MOUSER

在庫

2278

Min.Order

1

地域

WORLDWIDE Buy from Distributor

DIGIKEY

在庫

2246

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 4/9/2025

L6982C50DR 量産中

Budgetary Price (US$)*/Qty:
0.97 / 10k
パッケージ:
SO-8
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L6982C50DR

Operating Temperature (°C)

最小:

-40

最大:

150

販売代理店

Farnell Element14

在庫

59

Min.Order

1

ANGLIA Live

在庫

2600

Min.Order

1

MOUSER

在庫

2259

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 4/9/2025

L6982C33DR 量産中

Budgetary Price (US$)*/Qty:
0.97 / 10k
パッケージ:
SO-8
梱包タイプ:
Tape and Reel
RoHS:
Country of Origin:
CHINA
ECCN (US):
EAR99
ECCN (EU):
NEC

製品型番:

L6982C33DR

Operating Temperature (°C)

最小:

-40

最大:

150

販売代理店

Farnell Element14

在庫

2645

Min.Order

1

ANGLIA Live

在庫

2600

Min.Order

1

MOUSER

在庫

2124

Min.Order

1

地域

WORLDWIDE Buy from Distributor

販売代理店在庫データ: 4/9/2025

Swipe or click the button to explore more details Don't show this again

(*)概算用の参考価格(US$)です。現地通貨でのお見積りについては、STのセールス・オフィスまたは販売代理店までお問い合わせください。