Up to 1 A step down switching regulator

下载数据手册

Sample and Buy from our eStore

样片和购买
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 L5970AD is a step down monolithic power switching regulator with a switch current limit of 1.5A so it is able to deliver more than 1A DC current to the load depending on the application conditions.

    The output voltage can be set from 1.235V to 35V.
    The device uses an internal P-Channel D-MOS transistor (with a typical RDSON of 200mΩ) as switching element to avoid the use of bootstrap capacitor and guarantee high efficiency.
    An internal oscillator fixes the switching frequency at 500KHz to minimize the size of external components. Having a minimum input voltage of 4.4V only, it is particularly suitable for 5V bus, available in all computer related applications.
    Pulse by pulse current limit with the internal frequency modulation offers an effective constant current short circuit protection.

    主要特性

    • INHIBIT FOR ZERO CURRENT CONSUMPTION
    • INTERNAL CURRENT LIMITING
    • PROTECTION AGAINST FEEDBACK DISCONNECTION
    • SYNCHRONIZATION
    • THERMAL SHUTDOWN
    • VOLTAGE FEEDFORWARD
    • 500KHz INTERNALLY FIXED FREQUENCY
    • 1.5A INTERNAL SWITCH
    • 3.3V / (±2%) REFERENCE VOLTAGE
    • OPERATING INPUT VOLTAGE FROM 4.4V TO 36V
    • LOW DROPOUT OPERATION: 100% DUTY CYCLE
    • ZERO LOAD CURRENT OPERATION
    • OUTPUT VOLTAGE ADJUSTABLE FROM 1.235V TO 35V

电路原理图

下载 下载

样片和购买

产品型号
封装
包装类型
供货状态
预算价格(US$)
数量
ECCN (US)
Country of Origin
从分销商订购
从ST订购
L5970ADTR SO-8 Tape And Reel
Active
0.959 10000 EAR99 CHINA 查看供货情况

Distributor availability ofL5970ADTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 36931 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
Newark Element14 AMERICA 614 0 Order Now
MOUSER WORLDWIDE 3310 1 Order Now
Farnell Element14 EUROPE 977 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

36931

Min.Order

1

地区

WORLDWIDE Order Now

FUTURE

库存

2500

Min.Order

2500

地区

WORLDWIDE Order Now

Newark Element14

库存

614

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

3310

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

977

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

Get sample
L5970AD SO-8 Tube
Active
0.959 10000 EAR99 CHINA 查看供货情况

Distributor availability ofL5970AD

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2345 1 Order Now
RS COMPONENTS EUROPE 1715 5 Order Now
FUTURE WORLDWIDE 293 1 Order Now
ARROW EUROPE 2201 0 Order Now
MOUSER WORLDWIDE 2268 1 Order Now
Farnell Element14 EUROPE 720 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

2345

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

1715

Min.Order

5

地区

EUROPE Order Now

FUTURE

库存

293

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2201

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2268

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

720

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

立即购买

L5970ADTR

封装

SO-8

包装类型

Tape And Reel

Unit Price (US$)

0.959*

Distributor availability ofL5970ADTR

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 36931 1 Order Now
FUTURE WORLDWIDE 2500 2500 Order Now
Newark Element14 AMERICA 614 0 Order Now
MOUSER WORLDWIDE 3310 1 Order Now
Farnell Element14 EUROPE 977 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

36931

Min.Order

1

地区

WORLDWIDE Order Now

FUTURE

库存

2500

Min.Order

2500

地区

WORLDWIDE Order Now

Newark Element14

库存

614

Min.Order

0

地区

AMERICA Order Now

MOUSER

库存

3310

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

977

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

供货状态

Active

Unit Price (US$)

0.959

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

L5970AD

封装

SO-8

包装类型

Tube

Unit Price (US$)

0.959*

Distributor availability ofL5970AD

代理商名称
地区 库存 最小订购量 Third party link
DIGIKEY WORLDWIDE 2345 1 Order Now
RS COMPONENTS EUROPE 1715 5 Order Now
FUTURE WORLDWIDE 293 1 Order Now
ARROW EUROPE 2201 0 Order Now
MOUSER WORLDWIDE 2268 1 Order Now
Farnell Element14 EUROPE 720 1 Order Now

代理商库存报告日期: 2019-08-08

代理商名称

DIGIKEY

库存

2345

Min.Order

1

地区

WORLDWIDE Order Now

RS COMPONENTS

库存

1715

Min.Order

5

地区

EUROPE Order Now

FUTURE

库存

293

Min.Order

1

地区

WORLDWIDE Order Now

ARROW

库存

2201

Min.Order

0

地区

EUROPE Order Now

MOUSER

库存

2268

Min.Order

1

地区

WORLDWIDE Order Now

Farnell Element14

库存

720

Min.Order

1

地区

EUROPE Order Now

代理商库存报告日期: 2019-08-08

供货状态

Active

Unit Price (US$)

0.959

数量

10000

ECCN (US)

EAR99

Country of Origin

CHINA

(*) 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

Education

Product included in our Longevity Program.

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
      DS4263
      1.5A switch step down switching regulator
      1.3
      135.79 KB
      PDF
      DS4263

      1.5A switch step down switching regulator

    • 描述 版本 文档大小 操作
      DN0011
      ST1S03 alternative topology: Using a buck in a negative buck-boost configuration
      1.2
      361.3 KB
      PDF
      DN0011

      ST1S03 alternative topology: Using a buck in a negative buck-boost configuration

硬件型号、CAD库及SVD

    • 描述 版本 文档大小 操作
      X597X Pspice model
      3.64 MB
      ZIP

      X597X Pspice model

出版刊物和宣传资料

    • 描述 版本 文档大小 操作
      Electric vehicle (EV) ecosystem 1.1
      1.28 MB
      PDF
      Switching Converters (DC-DC) – Quick Reference Guide 1.0
      481.92 KB
      PDF

      Electric vehicle (EV) ecosystem

      Switching Converters (DC-DC) – Quick Reference Guide

产品型号 供货状态 封装 等级规格 符合RoHS级别 材料声明**
L5970AD
Active
SO-8 工业 Ecopack2 (**)
L5970ADTR
Active
SO-8 工业 Ecopack2 (**)

L5970AD

Package:

SO-8

Material Declaration**:

Marketing Status

Active

Package

SO-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2 (**)

L5970ADTR

Package:

SO-8

Material Declaration**:

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.

eDesignSuite

转换器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

Output Power

V This option is required and must be a number.
A This option is required and must be a number.

LED驱动器

Input

V This option is required. And must be less than or equal to Volt. Max [V]
V This option is required. And must be greater than or equal to Volt. Min [V]

LED自定义

V This option is required.
A This option is required.
Ω This option is required.

LEDs

This option is required. And must be a whole positive number between 1 and 20.
This option is required. And must be a whole positive number between 1 and 20.