WMSIC Electronic Components

LRC LR78L05A

ModelLR78L05A
PackageSOT-89-3
BrandLRC
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
LRC LR78L05A
Type
LRC
Minimum package
5000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
1.7V
Electronic Component
LRC
Electronic Component
40uV
Electronic Component
LR78L05A
Electronic Component
1
Package
SOT-89-3
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.183g
Electronic Component
1
Electronic Component
BM0225941574
Operating Temperature
40℃~+150℃@(Ta)
Operating Voltage
20V
Output
Electronic Component
Output Voltage
5V
Output Current
100mA

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

LR78L05A 产品概述

概要

LR78L05A 是一款由乐山无线电(LRC)公司生产的线性稳压器(LDO),属于其他电源管理IC中的三端稳压器系列。该器件以其高性能、多重保护功能和广泛的应用场景而受到广泛欢迎。

基础参数

  • 商品分类: 线性稳压器(LDO)
  • 工作温度: -40℃ ~ +150℃ (@Tj)
  • 最大输入电压: 30V
  • 输出极性: 正极
  • 输出电压: 5V
  • 输出电流: 100mA
  • 输出类型: 固定
  • 输出通道数: 1

特性和保护功能

LR78L05A 具有多种保护功能,确保在各种应用场景下提供可靠的电源输出:

  • 防静电保护: 防止静电损伤,提高器件的耐用性。
  • 短路保护: 当输出端短路时,自动切断输出电流,防止器件过热或损坏。
  • 热保护(TSD): 当器件温度超过安全阈值时,自动减少或切断输出电流,以防止过热。
  • 过流保护(OCP): 当输出电流超过安全阈值时,自动限制或切断输出电流,以防止器件损坏。

电源性能

  • 电源纹波抑制比(PSRR): 49dB (@120Hz),表明该器件具有优秀的电源纹波抑制能力,能够提供非常稳定的输出电压。
  • 输入电压范围: Vin 30-35V,适用于各种高输入电压应用场景。

封装和尺寸

LR78L05A 采用 SOT-89-3 封装,这是一种小型化的封装形式,非常适合空间有限的现代电子设备。这种封装不仅节省了 PCB 空间,还提高了设备的整体可靠性和散热性能。

应用场景

LR78L05A 广泛应用于各种需要稳定低压电源的电子设备,例如:

  • 嵌入式系统: 提供稳定的5V电源给微控制器、传感器和其他嵌入式设备。
  • 通信设备: 用于基站、无线路由器、调制解调器等通信设备的电源管理。
  • 工业控制系统: 为PLC、HMI等工业控制设备提供可靠的电源。
  • 消费电子产品: 适用于智能家居设备、可穿戴设备、移动设备等需要低噪声稳定电源的消费电子产品。

优势

  1. 高稳定性: 优秀的电源纹波抑制比(PSRR)和固定输出电压,确保输出电压的稳定性。
  2. 多重保护: 防静电保护、短路保护、热保护和过流保护,提高了器件的可靠性和使用寿命。
  3. 小型化封装: SOT-89-3 封装形式,适合现代电子设备对空间的要求。
  4. 宽温范围: 支持-40℃ ~ +150℃ 的工作温度范围,适用于各种环境条件下的应用。

使用注意事项

在使用 LR78L05A 时,需要注意以下几点:

  1. 输入滤波: 建议在输入端添加适当的滤波元件,以进一步提高电源的稳定性。
  2. 散热设计: 尽量确保良好的散热设计,以避免器件过热。
  3. 布局设计: 在 PCB 布局中,尽量减少噪声和干扰对稳压器的影响。

总之,LR78L05A 是一款功能齐全、性能优异的线性稳压器,广泛适用于各种需要稳定低压电源的电子设备。其多重保护功能和小型化封装使其成为现代电子设计中的理想选择。

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.