WMSIC Electronic Components

UMW LM2576S-5.0 LM2576S

ModelLM2576S-5.0
PackageTO-263-5
BrandUMW
Price Price on request Electronic component prices change quickly with market supply and demand. Please refer to the latest WMSIC quotation for current pricing.
Configuration
1 options
Configuration 26+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
UMW LM2576S-5.0
Type
UMW
Minimum package
800 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
UMW
Electronic Component
LM2576S-5.0
Electronic Component
1
Package
TO-263-5
Electronic Component
DC-DC Power Supply IC
Electronic Component
0g
Electronic Component
1
Type
Electronic Component
Synchronous
Electronic Component
Electronic Component
BM0093065551
Operating Temperature
40℃~+125℃@(TA)
Operating Voltage
7V~40V
Switching Frequency
52kHz
Electronic Component
Electronic Component
Output Voltage
5V

For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.

LM2576S-5.0 产品概述

引言

LM2576S-5.0是一款高效降压型DC-DC电源转换器,属于友台半导体(UMW)旗下的产品系列。该芯片专为将高输入电压降至稳定的5V输出而设计,能够广泛应用于各种电子设备的电源管理方案。

产品规格

LM2576S-5.0支持的输入电压范围高达40V,具有很强的适应性,能够满足多种电源环境的需求。它的固定输出电压为5V,使其在需要5V电源的场合尤其受欢迎。其采用TO-263-5L封装,具备良好的散热性能,有助于在高负载下稳定工作。

工作原理

LM2576S-5.0工作在降压模式下,采用脉宽调制(PWM)技术,能够有效调节输出电压。该芯片的内部电流限制和热保护功能,进一步提高了系统的可靠性,确保其在各种工作环境中都能安全稳定运行。

主要特性

  1. 高效率:LM2576S-5.0在全负载条件下可实现高达90%以上的转换效率,显著降低在负载下的功耗与热量生成,适合需要高效能的应用场景。

  2. 宽输入电压范围:支持宽广的输入电压范围(4.5V至40V),使用户在使用时具备更大的灵活性。

  3. 固定输出电压:5V的固定输出电压,满足大多数5V电源需求,无需额外外部电压调整电路。

  4. 短路和过温保护:具备短路保护和过热保护功能,能够有效防止电路因故障而受到损害。

  5. 简单的外部电路设计:设计方案简单,通常只需要少数外部元件就能够实现高效能的DC-DC电源转换,降低了电路设计的复杂度。

  6. TO-263-5L封装:此封装既保证了占用空间小,又能有效散发热量,适用于狭小的电子设备内部。

应用场景

LM2576S-5.0在各种电子设备的电源管理中找到其应用,包括但不限于:

  • 微控制器供电:为低功耗微控制器和单片机提供稳定的5V电源。
  • 便携式设备:移动设备、手持工具等场合需要高效的电源转换。
  • 工业控制系统:在复杂的工业环境中用于提供稳定、可靠的电源。
  • LED驱动:为LED应用提供恒定的电压和电流,确保亮度均匀。
  • 汽车电子:在汽车电源系统中,将电池电压降至5V以供给不同的电子元件。

结论

LM2576S-5.0是一款性能卓越、功能完善的DC-DC电源转换器。凭借其优异的转换效率、宽广的输入电压范围以及安全可靠的保护功能,广泛应用于各种需要降压供电的电子系统。无论是在消费电子产品还是在工业设备中,LM2576S-5.0都能够为设计者提供强有力的支持和便利。通过其简单的外围电路需求和高稳定性,LM2576S-5.0不失为电子设计领域的热门选择。

Request for quote

Send RFQ

Use the form for single models, category sourcing, and multi-line BOM requirements.

Send your target model and quantity.

Product sourcing intelligence

Model, package, availability, and BOM fit reviewed before quotation.

WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.

Electronic component model and package intelligence review on an ESD-safe inspection bench

Model & package intelligence

Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.

BOM matching and alternative component comparison workstation with protected IC samples

BOM matching & alternatives

BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.

Electronic component sourcing availability dashboard with ESD-protected samples

Sourcing availability signal

Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.

Buyer sourcing scenarios

Examples of how common component sourcing requests are organized.

Typical RFQ scenarios based on the WMSIC form fields, catalog data, manual review steps, and shipment preparation workflow.

The buyer shares the full part number, package requirement, quantity, destination, and available product photos so the quotation can record the exact version under review.

Package confirmation Typical RFQ workflow

A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.

Mixed BOM triage Typical RFQ workflow

The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.

Obsolete-part review Typical RFQ workflow

Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.

Small-batch request Typical RFQ workflow

Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.

Repair batch evidence Typical RFQ workflow

When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.

Model suffix clarification Typical RFQ workflow

Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.

Export handoff Typical RFQ workflow

The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.

Replenishment inquiry Typical RFQ workflow

Related products

Packaged components ready for RFQ.