High efficiency synchronous step-down regulator based on the L6984

下载产品简介

Order from our distributors

查看供货情况
概述
工具与软件
资源
解决方案
质量与可靠性
Sales Briefcase
eDesignSuite
开始
样片和购买
Partner products
  • The STEVAL-ISA159V1 product evaluation board is based on L6984, a high-efficiency monolithic synchronous step-down regulator, capable of delivering up to 400 mA of DC current. The fixed 3.3 V output requires no external resistor divider. The L6984 is suited for home appliances, factory and building automation. The Low Consumption Mode (LCM) is designed for eco-friendly home appliances and automotive applications active during car parking, so it maximizes the efficiency at light load with controlled output voltage ripple. The Low Noise Mode (LNM) makes the switching frequency nearly constant over the load current range, serving low noise application specifications such as audio and sensors. The PGOOD open collector output can implement output voltage sequencing during the power-up phase. The synchronous rectification, designed for high efficiency at medium-heavy load, and the high switching frequency capability ensure a compact application size. Pulse-by-pulse current sensing on the low-side power element implements effective constant current protection.

    主要特性

    • 400 mA DC output current
    • 4.5 V to 36 V operating input voltage
    • Synchronous rectification
    • Low consumption mode or low noise mode
    • 100 µA IQ at light load (LCM VOUT = 3.3 V)
    • 13 µA IQ-SHTDWN
    • Adjustable fSW (250 kHz - 600 kHz)
    • Output voltage adjustable from 0.9 V
    • No resistor divider required for 3.3 V VOUT
    • VBIAS maximizes efficiency at light load
    • 350 mA valley current limit
    • Constant on-time control scheme
    • PGOOD open collector
    • Thermal shutdown
    • RoHS compliant

样片和购买

产品型号
核心产品
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
Board production status
从分销商订购
从ST订购
STEVAL-ISA159V1 L6984
Active
33 1 EAR99 ITALY - 查看供货情况

Distributor availability ofSTEVAL-ISA159V1

代理商名称
地区 库存 最小订购量 Third party link
Farnell Element14 EUROPE 4 1 Order Now

代理商库存报告日期: 2019-07-19

代理商名称

Farnell Element14

库存

4

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-07-19

STEVAL-ISA159V1

核心产品

L6984

供货状态

批量生产

Unit Price (US$)

33.0*

Distributor availability ofSTEVAL-ISA159V1

代理商名称
地区 库存 最小订购量 Third party link
Farnell Element14 EUROPE 4 1 Order Now

代理商库存报告日期: 2019-07-19

代理商名称

Farnell Element14

库存

4

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-07-19

Unit Price (US$)

33

数量

1

ECCN (US)

EAR99

Country of Origin

ITALY

Board production status

-

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

适合您的资源

00 选择要下载的文档

技术文档

    • 描述 版本 文档大小 操作
      DB2417
      High efficiency synchronous step-down regulator based on the L6984
      2.0
      182.43 KB
      PDF
      DB2417

      High efficiency synchronous step-down regulator based on the L6984

硬件资源

    • 描述 版本 文档大小 操作
      STEVAL-ISA159V1 gerber files 1.0
      1.28 MB
      ZIP

      STEVAL-ISA159V1 gerber files

    • 描述 版本 文档大小 操作
      STEVAL-ISA159V1 BOM 1.0
      72.85 KB
      PDF

      STEVAL-ISA159V1 BOM

    • 描述 版本 文档大小 操作
      STEVAL-ISA159V1 schematics 1.0
      45.16 KB
      PDF

      STEVAL-ISA159V1 schematics

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      eDesignSuite-The smart way to design your application 1.0
      842.88 KB
      PDF

      eDesignSuite-The smart way to design your application

法律

    • 描述 版本 文档大小 操作
      Evaluation products license agreement 1.6
      74.12 KB
      PDF

      Evaluation products license agreement

产品型号 供货状态 封装 等级规格 符合RoHS级别 WEEE Compliant 材料声明**
STEVAL-ISA159V1
Active
CARD 工业 Ecopack2 -

STEVAL-ISA159V1

Package:

CARD

Material Declaration**:

Marketing Status

Active

Package

CARD

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.