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.
TMI3408D 是拓尔微(TMI)推出的一款降压型同步整流开关稳压器,适用于 2.5V ~ 5.5V 输入电压范围,提供最高 1.2A 连续输出电流。芯片内置开关管,开关频率 1.5MHz,支持可调输出,工作结温范围为 -40℃ 到 +125℃,静态电流仅 40µA,封装为 DFN-6-EP(2×2)。高频工作和低静态电流使其适合空间受限且对功耗敏感的便携式与电池供电应用。
DFN-6-EP(2×2)带有外露焊盘(EP),该焊盘是散热主通道。推荐多孔铜通过(vias)将底部焊盘连到内层或背面大铜箔,增大散热面积。在靠近最大负载运行或高环境温度时,应评估结-环境温升并采取合适散热措施,确保芯片工作结温低于 125℃。
结论:TMI3408D 以其高开关频率、同步整流与低静态电流的组合,在空间与功耗受限的便携与物联网应用中具有明显优势。合理选择外部器件并做好 PCB 热与布局设计,能最大化其性能表现。
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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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