Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
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Technical data
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WL2815D30-4/TR 是韦尔(WILLSEMI)推出的一款超低静态电流线性稳压器(LDO),固定输出 3.0V,支持最高工作电压 5.5V。器件面向低功耗、对噪声和电源纹波有要求的便携与物联网类应用,集成使能与短路保护功能,封装为紧凑型 UDFN-4-EP (1×1mm)。
WL2815D30-4/TR 以超低静态电流与高 PSRR 为主要卖点:1.5µA 的静态电流非常适合长期待机或电池供电的终端,可有效延长电池寿命;65dB @1kHz 的 PSRR 与 50µVrms 低输出噪声,适合对模拟前端、ADC、射频前端或敏感传感器电源的净化。75mV 的低压差(在 100mA 负载时)允许在电池电压接近输出电压时仍能稳定供电,适用于 3V 轨道紧凑设计。
UDFN-4-EP (1×1mm) 小封装适合空间受限的移动与便携设备。工作温度范围 -40℃ ~ +85℃ 满足一般工业级和商业级环境要求。建议在产品开发中遵循厂家推荐的焊接和回流规范以确保封装可靠性。
总结:WL2815D30-4/TR 以低静态电流、低噪声、高 PSRR 和低压差的综合表现,适合对功耗与电源品质有双重要求的紧凑型系统,且带有使能与短路保护,便于系统电源管理与可靠性设计。
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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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