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.
XH2576-3.3是信路达(XINLUDA)推出的一款非同步降压式DC-DC转换器,专为中等功率(3A)、宽电压输入场景设计,核心功能是将6V~40V的直流输入稳定转换为固定3.3V输出,适配工业级、车载级等宽温应用需求。
XH2576-3.3属于传统降压拓扑(Buck)架构,区别于同步整流方案,采用续流二极管实现电流续流,结构简单、可靠性高,无需额外控制逻辑。其核心定位是宽压输入、固定输出的中等功率电源模块,可替代部分传统线性稳压器(如LM1117-3.3)——在输入电压高于输出电压较多时(如24V转3.3V),效率显著提升,同时避免线性稳压器的严重发热问题,适合长期通电的工业/车载设备。
XH2576-3.3采用TO-263-5贴片封装,引脚定义符合行业标准(通常为:输入Vin、输出Vout、地GND、反馈FB、使能EN),尺寸紧凑(约7.6mm×6.4mm),适合PCB高密度布局。封装自带散热焊盘,可通过PCB铜箔(建议≥10cm²)或小型散热片增强散热能力,满足3A输出时的热管理需求。
XH2576-3.3的宽压、宽温特性使其适配多类场景:
XH2576-3.3以其宽压输入、高可靠性和紧凑封装,成为工业、车载等场景中3.3V/3A电源设计的实用选择,适合对成本敏感且无需同步整流极致效率的应用需求。
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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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