Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Available for RFQ
Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WL2801E28-5/TR 是一款固定输出、正极 2.8V 的低压差线性稳压器(LDO),采用 SOT-23-5L 封装,面向对噪声、供电稳定性和功耗有较高要求的便携与嵌入式应用。器件内置使能(EN)引脚以及多重保护机制,便于系统电源管理与故障防护。
凭借低静态电流与较低压差,WL2801E28-5/TR 非常适合电池供电和节能型终端。高 PSRR 与低噪声特性使其适用于射频前端、传感器供电、ADC/DAC 参考源以及便携式音频设备。内置保护机制有助于在短路或过载时保护器件与负载,适合 IoT 节点、可穿戴设备、工业控制模块等场景。
SOT-23-5L 小巧,适合空间受限设计。实际允许的输出功耗受 PCB 散热能力影响:建议在布局中为输入/输出及地引脚提供充足铜箔散热面积或热沉,避免长时间大电流输出时器件进入热限流从而降额。
WL2801E28-5/TR 为 WILLSEMI(韦尔)品牌型号,后缀 TR 表示卷带包装,适合 SMT 贴片生产线。选型时建议参考最新版器件数据手册获取完整电气特性、典型应用电路、封装尺寸及推荐外部组件值,以确保在目标应用中的可靠性与性能。若需更高输出电流或不同输出电压版本,可咨询供应商或查看同系列其他型号。
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Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
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.
A multi-line BOM is organized into direct sourcing lines, lines that need package clarification, and lines where alternative-part review is permitted.
The original manufacturer part number, datasheet revision, application, critical limits, and acceptable changes are collected before possible candidates are discussed.
Sample quantity, minimum packing, package format, target date, and courier destination are kept together in one RFQ conversation.
Package photos, model markings, board context, and the quantity needed for repair help focus the sourcing review on the relevant version.
When a suffix or package note is incomplete, the response records the open difference and requests buyer confirmation before procurement proceeds.
Packing format, carton notes, invoice details, courier option, destination, and tracking handoff are coordinated around the confirmed order.
The request connects the previously used model, current demand, package evidence, target timing, and replenishment sourcing route.
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