Model & package intelligence
Model text, package form, tray or reel details, and visual evidence are reviewed together before RFQ feedback.
Siproin H7650-33GR H7650
Configuration
1 options
Configuration
Date code within 2 years
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- Siproin H7650-33GR
- Type
- SIPROIN
- Minimum package
- 2500 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- 60mV@(100mA)
- Electronic Component
- SIPROIN
- Electronic Component
- H7650-33GR
- Electronic Component
- 1
- Package
- SOT-223
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 0.156g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0226460863
- Operating Temperature
- 40℃~+85℃
- Operating Voltage
- 8V
- Output
- Electronic Component
- Output Voltage
- 3.3V
- Output Current
- 750mA
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
H7650-33GR 产品概述
一、主要特性
H7650-33GR 是上海矽朋（Siproin）推出的一款固定输出线性稳压器（LDO），为单通道正极输出，标称输出电压为 3.3V。器件具备过热保护功能，静态工作电流仅 25µA，输出电流最高可达 750mA，适合为中大电流数字与模拟负载提供稳定电源。器件采用 SOT-223 封装，便于通过 PCB 散热设计提高热性能。
二、性能参数摘要
- 输出类型：固定（3.3V）
- 最大输出电流：750mA
- 静态电流（Iq）：25µA（待机/空载下低耗）
- 过热保护：内置热关断机制，提高系统可靠性
- 压差（Dropout）：60mV @ 100mA（低压差设计，有利于低压差供电）
- 电源纹波抑制比（PSRR）：70dB @ 1kHz（较高的噪声抑制能力）
- 工作温度范围：-40℃ ~ +85℃
- 输出极性：正极输出
- 封装：SOT-223
- 备注：基础资料中工作/输入电压项显示 8V，同时描述亦提及 10V 等级，设计时请以最新规格书为准并确认输入电压余量。
三、典型应用场景
- 工业与通信设备的 3.3V 核心/外围供电
- 嵌入式系统与单片机（MCU）、FPGA、DSP 等电源管理
- 电池供电或低压差电源系统中对效率与噪声敏感的模块
- 摄像头模组、传感器前端以及模拟放大电路的低噪声电源
- 便携式设备与物联网终端（IoT）
四、封装与热设计要点
SOT-223 在小体积下具备较好的 PCB 散热路径。针对 750mA 的连续输出，应：
- 在 PCB 上提供较大铜箔面积作为散热垫（尤其是引脚对应区和接地平面），并考虑多层板热通孔（vias）连接底层散热层。
- 在高电流或高压差工作条件下关注功耗 P = (Vin - 3.3V) × Iout，计算结温并验证热保护动作点与安全余量。
五、使用建议与注意事项
- 输入/输出去耦：建议在输入端和输出端分别配置合适的去耦电容（常见为 1µF–10µF 陶瓷 + 10µF 低 ESR 电解或钽电容做补偿），以保证稳定性与瞬态响应。
- 布局：输入电容靠近 VIN 引脚，输出电容靠近 VOUT 与地之间最短回流路径。地线宜短且粗。
- 启动与瞬态：当负载瞬态较大时，需评估输出电容与 ESR 对稳压器稳定性的影响，并根据实际试验调整。
- 保护：在高浪涌或反向电压场景下考虑串联保护元件或外部二极管，防止输入/输出反向电流损伤器件。
六、总结
H7650-33GR 以低静态电流、较高 PSRR 与较低压差为核心优势，适用于对噪声与功耗有严格要求的 3.3V 电源设计。SOT-223 封装便于在 PCB 上实现高效散热和可靠装配。建议在最终设计前参照并核对最新器件规格书，以确保输入电压范围与外围元件选型满足系统需求。
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.
1 Piece Integrated Circuit for IRS20124S IRS21956S SOP-20 IRS2453DS SOP-14
- Model
- IRS20124S
- Package
