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
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MAX17504ATP+T 是 ADI/Linear(原 Maxim)推出的一款高输入电压、同步降压稳压器,适用于工业与汽车等需要宽电压范围和高集成度的场合。器件支持 4.5V 至 60V 的输入,最高可输出 3.5A 连续电流,内部集成功率开关,输出电压可通过外部反馈电阻调节。最大开关频率可达 2.2MHz,器件工作温度范围为 -40℃ 至 +125℃,静态电流仅 118μA,适合对待机功耗有要求的系统。
MAX17504 在中等负载条件下可实现较高转换效率(效率受输入电压、输出电压、开关频率与电感选择影响)。选择较高的开关频率可减小电感和输出电容体积,但会增加开关损耗与器件发热;低频工作则在重载下效率更优。建议电感峰值/连续电流容量要高于最大输出电流以保证稳定性与热裕量。
QFN-20-EP (5x5) 带较大裸露焊盘(EP),用于散热与地连接。为保证长期可靠性与热性能,应在 PCB 下方设计热盲 vias 将散热焊盘与内部/底层铜皮连通,放置足够铜面积并进行回流焊贴装。器件在高输入电压或高负载时会产生较大功耗,需评估结温并在必要时采用散热措施。
总结:MAX17504ATP+T 以其宽输入电压、高开关频率、低静态电流与集成功能,在工业与汽车等需要高可靠性与小尺寸电源解决方案的场合具有明显优势。合理的器件选型、PCB 布局与热设计是实现稳定高效工作的关键。
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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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