L6981

批量生产
Education Education

38 V, 1.5 A synchronous step-down converter with low quiescent current

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产品概述

描述

The L6981 is an easy to use synchronous monolithic step-down regulator capable of delivering up to 1.5 A DC to the load. The wide input voltage range makes the device suitable for a broad range of applications. The L6981 is based on a peak current mode architecture and is packaged in an SO8 with internal compensation, thus minimizing design complexity and size. The L6981 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 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.
  • 所有功能

    • 3.5 V to 38 V operating input voltage
    • Output voltage from 0.85 V to VIN
    • 1.5 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
    • Enable
    • Overvoltage protection
    • Output voltage sequencing
    • Thermal protection
    • Synchronization to external clock for LNM devices
    • SO8 package

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相关应用

工业

All tools & software

    • 产品型号
      状态
      描述
      类型
      供应商

      STEVAL-L6981CDR

      批量生产

      38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR

      电源和功率转换器解决方案评估板 --
      STEVAL-L6981CDR

      描述:

      38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981CDR

      STEVAL-L6981NDR

      批量生产

      38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR

      电源和功率转换器解决方案评估板 --
      STEVAL-L6981NDR

      描述:

      38 V, 1.5 A synchronous step-down switching regulator evaluation board based on the L6981NDR

EDA符号、封装和3D模型

STMicroelectronics - L6981

为您的应用下载所有EDA符号、封装和3D模型,加快您的设计速度。您可以从大量CAD格式中进行选择,以匹配您的设计工具链。

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3D模型

质量与可靠性

产品型号 Marketing Status 封装 等级规格 符合RoHS级别 材料声明**
L6981CDR
批量生产
SO-8 工业 Ecopack2
L6981NDR
批量生产
SO-8 工业 Ecopack2

L6981CDR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L6981NDR

Package:

SO-8

Material Declaration**:

PDF XML

Marketing Status

批量生产

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) st.com上提供的材料声明表单可能是基于包装系列中最常用的封装的通用文档。因此,它们可能不是100%适用于特定的设备。有关特定设备的信息,请联系 销售支持

样片和购买

产品型号
从分销商订购
从ST订购
供货状态
ECCN (US)
ECCN (EU)
包装类型
封装
温度(ºC) Country of Origin
Budgetary Price (US$)*/Qty
最小值
最大值
L6981CDR Available at 3 distributors

经销商的可用性L6981CDR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 855 1 马上订购
RS COMPONENTS EUROPE 940 1 马上订购
MOUSER WORLDWIDE 322 1 马上订购

代理商库存报告日期: 2021-09-16

代理商名称

DIGIKEY

库存

855

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

940

Min.Order

1

地区

EUROPE 马上订购

MOUSER

库存

322

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-09-16

Free Sample Buy Direct
批量生产
EAR99 NEC Tape And Reel SO-8 - - CHINA 1.1 / 1k
L6981NDR 无法联系到经销商,请联系我们的销售办事处
批量生产
EAR99 NEC Tape And Reel SO-8 - - CHINA 1.1 / 1k

L6981CDR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1 / 1k

经销商的可用性L6981CDR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 855 1 马上订购
RS COMPONENTS EUROPE 940 1 马上订购
MOUSER WORLDWIDE 322 1 马上订购

代理商库存报告日期: 2021-09-16

代理商名称

DIGIKEY

库存

855

Min.Order

1

地区

WORLDWIDE 马上订购

RS COMPONENTS

库存

940

Min.Order

1

地区

EUROPE 马上订购

MOUSER

库存

322

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-09-16

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.1 / 1k

Country of Origin

CHINA

L6981NDR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.1 / 1k

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-8

Operating Temperature (°C)

(最小值)

-

(最大值)

-

Budgetary Price (US$)* / Qty

1.1 / 1k

Country of Origin

CHINA

(*) 建议转售单价(美元)仅用于预算用途。如需以当地货币计价的报价,请联系您当地的 ST销售办事处 或我们的 经销商