Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
WILLSEMI WL2836D33-4/TR WL2836D33
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- WILLSEMI WL2836D33-4 / TR
- Type
- WILLSEMI
- Minimum package
- 10000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 118mV@(300mA)
- Electronic Component
- WILLSEMI
- Electronic Component
- WL2836D33-4/TR
- Electronic Component
- 1
- Package
- DFN1x1-4L
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.012g
- Electronic Component
- 1
- Electronic Component
- BM0227559846
- Operating Temperature
- 40℃~+85℃@(Ta)
- Operating Voltage
- 5.5V
- Output
- Electronic Component
- Output Voltage
- 3.3V
- Output Current
- 300mA
- Output Type
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
WL2836D33-4/TR 产品概述
一、产品简介
WL2836D33-4/TR 是 WILLSEMI（韦尔）推出的一款高性能固定输出线性稳压器（LDO），输出电压为 3.3V，单通道设计，采用微型 DFN1x1-4L 封装。器件集成短路保护、过热保护与使能控制，适合对体积、静态功耗和电源噪声有严格要求的便携和嵌入式设备。
二、主要电气特性
- 输出电压：3.3V（固定）
- 最大输出电流：300mA
- 工作电压（输入上限）：5.5V
- 压差（Dropout）：118mV @ 300mA（低压差，适合低电压差应用）
- 静态电流（Iq）：50μA（低静态电流，利于电池供电场景）
- 电源纹波抑制比（PSRR）：80dB @ 100Hz（对低频纹波抑制良好）
- 输出极性：正极输出
- 工作温度范围：-40°C ~ +85°C (Ta)
- 保护功能：短路保护、热关断保护；带使能脚，可实现外部电源管理。
三、封装与热管理
DFN1x1-4L 超小封装适合空间受限产品，但封装热阻较大。满载（300mA）时应关注差分电压导致的功耗：P = (Vin - Vout) × Iout。在较高输入电压或持续大电流场景下，建议在 PCB 上配置足够的散热铜箔和过孔以降低结温，避免热关断。
四、典型应用
- 电池供电便携设备、可穿戴设备
- 物联网节点、传感器模块与 MCU 供电
- 射频前端、模拟电路后级稳压（要求低噪声、高 PSRR 的场合）
- 工业控制与通信设备的 3.3V 电源轨
五、设计与布局建议
- 输入端近旁放置 1μF 以上低 ESR 陶瓷电容，紧贴 VIN 引脚以抑制瞬态；输出端建议 1μF–4.7μF 陶瓷电容，确保稳压器稳定工作（具体数值和 ESR 以数据手册为准）。
- 使能（EN）脚通过 MCU 或电源管理器控制，避免在电源抖动期间频繁使能/关断。
- DFN 封装的散热垫建议焊接到大面积地平面并通过过孔连接到内层/底层散热层，减小热阻。
- 尽量缩短 VIN、VOUT 与 GND 之间的回流路径，降低噪声耦合。
六、使用注意事项
- 当 Vin 接近器件工作上限或差分电压较大时，应计算稳压器功耗并评估 PCB 散热能力，以免触发热关断影响系统可靠性。
- 在高噪声电源或需更高纹波抑制的场合，可配合输入滤波与后级去耦网络进一步改善性能。
- 具体的引脚功能、典型应用电路、外部电容规范及热阻参数请以正式数据手册为准，设计前务必参照数据手册验证。
总结：WL2836D33-4/TR 以小体积、低静态电流、较高 PSRR 和完善的保护功能为特点，适合对功耗与噪声敏感的 3.3V 供电应用。在 PCB 布局和热管理上做适当优化，可在许多便携与嵌入式场景中提供稳定可靠的电源输出。
Request for quote
Send RFQ
Use the form for single models, category sourcing, and multi-line BOM requirements.
Product sourcing intelligence
Model, package, availability, and BOM fit reviewed before quotation.
WMSIC turns product data, package visuals, BOM context, and sourcing signals into practical RFQ notes for buyers.
BOM matching & alternatives
BOM lines are compared by package, parameters, quantity, and workable alternatives for cleaner sourcing decisions.
Sourcing availability signal
Stock routes, quotation confidence, lead-time notes, and shipment feasibility are checked before sales follow-up.
Buyer sourcing scenarios
Examples of how common component sourcing requests are organized.
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.
Related products
Packaged components ready for RFQ.
