L4976

批量生产

可调步降开关稳压器

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概述
Online design
样片和购买
解决方案
文件
CAD资源
工具与软件
质量与可靠性
开始
Partner products
Sales Briefcase

产品概述

描述

The L4976 is a step down monolithic power switching regulator delivering 1A at a voltage between 3.3V and 50V (selected by a simple external divider). Realized in BCD mixed technology, the device uses an internal power D-MOS transistor (with a typical Rds(ON) of 0.25W) to obtain very high efficency and high switching speed. A switching frequency up to 300KHz is achievable (the maximum power dissipation of the packages must be observed). A wide input voltage range between 8V to 55V and output voltages regulated from 3.3V to 40V cover the majority of today’s applications. Features of this new generations of DC-DC converter include pulse-by-pulse current limit, hiccup mode for short circuit protection, voltage feedforward regulation, protection against feedback loop disconnection and thermal shutdown. The device is available in plastic dual in line, DIP8 for standard assembly, and SO16W for SMD assembly.
  • 所有功能

    • Protection against feedback disconnection
    • and hiccup mode)
    • Thermal shutdown
    • Zero load current operation
    • Voltage feedforward
    • Up to 1A step down converter
    • Precise 5.1V reference voltage
    • Operating input voltage from 8v to 55v
    • Switching frequency adjustable up to 300kHz
    • Internal current limiting (pulse-bypulse
    • Output voltage adjustable from 0.5V to 50V

电路原理图

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EDA Symbols, Footprints and 3D Models

STMicroelectronics - L4976

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.

Symbols

Symbols

Footprints

Footprints

3D model

3D models

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**
L4976
NRND
DIP-8 工业 Ecopack2
L4976D
批量生产
SO-16W 工业 Ecopack1
L4976D013TR
批量生产
SO-16W 工业 Ecopack1

L4976

Package:

DIP-8

Material Declaration**:

Marketing Status

NRND

Package

DIP-8

Grade

Industrial

RoHS Compliance Grade

Ecopack2

L4976D

Package:

SO-16W

Material Declaration**:

Marketing Status

批量生产

Package

SO-16W

Grade

Industrial

RoHS Compliance Grade

Ecopack1

L4976D013TR

Package:

SO-16W

Material Declaration**:

Marketing Status

批量生产

Package

SO-16W

Grade

Industrial

RoHS Compliance Grade

Ecopack1

(**) 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

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.

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
L4976 无法联系到经销商,请联系我们的销售办事处
NRND
EAR99 NEC Tube DIP-8 -40 150 CHINA 1.729 / 1k
L4976D Available at 2 distributors

经销商的可用性L4976D

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 14 1 马上订购
Newark Element14 AMERICA 300 0 马上订购

代理商库存报告日期: 2021-04-09

代理商名称

DIGIKEY

库存

14

Min.Order

1

地区

WORLDWIDE 马上订购

Newark Element14

库存

300

Min.Order

0

地区

AMERICA 马上订购

代理商库存报告日期: 2021-04-09

批量生产
EAR99 NEC Tube SO-16W -40 150 MALAYSIA 1.788 / 1k
L4976D013TR Available at 1 distributors

经销商的可用性L4976D013TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 28 1 马上订购

代理商库存报告日期: 2021-04-08

代理商名称

DIGIKEY

库存

28

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-04-08

批量生产
EAR99 NEC Tape And Reel SO-16W -40 150 MALAYSIA 1.788 / 1k

L4976

供货状态

NRND

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.729 / 1k

ECCN (EU)

NEC

包装类型

Tube

封装

DIP-8

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Budgetary Price (US$)* / Qty

1.729 / 1k

Country of Origin

CHINA

L4976D

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.788 / 1k

经销商的可用性L4976D

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 14 1 马上订购
Newark Element14 AMERICA 300 0 马上订购

代理商库存报告日期: 2021-04-09

代理商名称

DIGIKEY

库存

14

Min.Order

1

地区

WORLDWIDE 马上订购

Newark Element14

库存

300

Min.Order

0

地区

AMERICA 马上订购

代理商库存报告日期: 2021-04-09

ECCN (EU)

NEC

包装类型

Tube

封装

SO-16W

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Budgetary Price (US$)* / Qty

1.788 / 1k

Country of Origin

MALAYSIA

L4976D013TR

供货状态

批量生产

ECCN (US)

EAR99

Budgetary Price (US$)*/Qty

1.788 / 1k

经销商的可用性L4976D013TR

代理商名称
地区 库存 最小订购量 第三方链接
DIGIKEY WORLDWIDE 28 1 马上订购

代理商库存报告日期: 2021-04-08

代理商名称

DIGIKEY

库存

28

Min.Order

1

地区

WORLDWIDE 马上订购

代理商库存报告日期: 2021-04-08

ECCN (EU)

NEC

包装类型

Tape And Reel

封装

SO-16W

Operating Temperature (°C)

(最小值)

-40

(最大值)

150

Budgetary Price (US$)* / Qty

1.788 / 1k

Country of Origin

MALAYSIA

(*) 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