WMSIC Electronic Components

WILLSEMI WL2805N33-3/TR WL2805N33

ModelWL2805N33-3/TR
PackageSOT-23-3L
BrandWILLSEMI
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 23+

Available for RFQ

Technical data

Product details

19 specifications

Core information

Product name
WILLSEMI WL2805N33-3 / TR
Type
WILLSEMI
Minimum package
3000 圆盘

Technical parameters

Electronic Component
Electronic Component
Electronic Component
100mV@(100mA)
Electronic Component
WILLSEMI
Electronic Component
WL2805N33-3/TR
Electronic Component
1
Package
SOT-23-3L
Electronic Component
Linear Regulator(LDO)
Electronic Component
0.048g
Electronic Component
1
Electronic Component
BM0227651494
Operating Temperature
40℃~+85℃@(Ta)
Operating Voltage
5.5V
Output
Electronic Component
Output Voltage
3.3V
Output Current
250mA
Output Type
Electronic Component

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

WL2805N33-3/TR 产品概述

一、产品简介

WL2805N33-3/TR 是 WILLSEMI(韦尔)推出的一款高性能固定输出线性稳压器(LDO),输出电压为 3.3V,输出电流最高 250mA。该器件采用 SOT-23-3L 小型封装,集成使能功能与短路保护,静态电流仅 3µA,适合对功耗、空间与电源干扰敏感的便携与嵌入式应用。

二、主要电气性能亮点

  • 输出类型:固定(3.3V)
  • 最大工作电压:5.5V(输入端可承受最高电压)
  • 最大输出电流:250mA
  • 压差(Dropout):100mV @ 100mA(低压差,有利于电池供电系统)
  • 静态电流(Iq):3µA(极低静态功耗,适合待机/低功耗场景)
  • 电源纹波抑制比(PSRR):30dB @ 1kHz(对中低频纹波有良好抑制能力)
  • 特性:带使能(EN)脚;短路保护(内置限流)
  • 工作温度范围:-40°C ~ +85°C(Ta)
  • 输出极性:正极输出;单通道输出
  • 封装:SOT-23-3L

三、功能特点与优势

  • 低压差工作:100mV @ 100mA 的低压差特性使 WL2805N33 在电池电压接近 3.3V 时仍能稳定工作,从而延长电池使用时间。
  • 极低待机电流:3µA 的静态电流显著降低系统待机能耗,适用于物联网节点、可穿戴设备等对待机续航有高要求的场景。
  • 使能控制:内置 EN 管脚,允许系统通过数字信号快速打开或关闭稳压输出,便于分区电源管理与节能控制。
  • 保护功能齐全:具备短路保护,提升系统在异常负载或误接线情况下的可靠性。
  • 小尺寸封装:SOT-23-3L 便于紧凑设计和自动贴装,适合空间受限的 PCB 布局。

四、典型应用场景

  • 电池供电设备:便携式设备、可穿戴产品、手持终端等;
  • 物联网与传感器节点:微控制器、电源域隔离、传感器供电;
  • 通信与消费类电子:Wi‑Fi / 蓝牙模块、GPS 模块、低功耗 MCU 电源;
  • 工业与仪表:对电源稳定性与可靠性有要求的嵌入式控制系统。

五、使用与布局建议

  • 输入/输出电容:为了保证稳压器的稳定性和瞬态响应,建议在 VIN 与 GND、VOUT 与 GND 处分别放置 1µF–10µF 的低 ESR 陶瓷电容,靠近器件引脚焊盘放置,缩短走线。
  • EN 控制:EN 脚可直接由 MCU 或控制逻辑驱动,建议在 EN 处配置上拉或上拉电阻以避免上电误触发(具体电阻值依据系统逻辑电平)。
  • 热管理:SOT-23-3L 封装散热受限,需注意 PCB 热铜面积的布局(GND 区域的金属填充或散热孔)以降低结温并保证长期可靠性。
  • 保护与滤波:若系统存在较强开关噪声或高频干扰,可在输入端增设滤波器或差模电感,并确保输入电压在器件最大额定值 5.5V 以内。

六、封装与采购信息

  • 型号:WL2805N33-3/TR
  • 品牌:WILLSEMI(韦尔)
  • 封装:SOT-23-3L
  • 包装与订购:通常采用带卷式包装,适配自动贴片生产线。具体订购编码与最小起订量请参考韦尔官方资料或授权分销商提供的产品规格书与报价。

总结:WL2805N33-3/TR 以其低压差、低静态电流、使能控制与短路保护等特性,适合对功耗、尺寸和可靠性有较高要求的小型电源应用。在实际设计中,合理配置输入/输出电容和 PCB 散热布局,可发挥该器件在性能与稳定性方面的优势。若需更详细的电气特性曲线、引脚定义与典型应用电路,请参考官方数据手册。

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.