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BELLING BL9157-33BC3A BL9157
Configuration
1 options
Configuration
25+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- BELLING BL9157-33BC3A
- Type
- BELLING
- Minimum package
- 1000 卷
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- BELLING
- Electronic Component
- BL9157-33BC3A
- Electronic Component
- 1
- Package
- SOT-89-3
- Electronic Component
- Linear Regulator(LDO)
- Electronic Component
- 2.2g
- Electronic Component
- 1
- Features
- Electronic Component
- Electronic Component
- BM0228055585
- Operating Temperature
- 40℃~+85℃@(Ta)
- Operating Voltage
- 30V
- Output
- Electronic Component
- Output Current
- 150mA
- Output Type
- Electronic Component
- Output Channel Count
- 1
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
BL9157-33BC3A 产品概述
一、产品简介
BL9157-33BC3A 是贝岭（BELLING）推出的一款固定输出线性低压差稳压器（LDO），输出电压为 3.3V。器件采用 SOT-89-3 小型封装，面向空间受限且对静态功耗敏感的便携和工业应用，支持工作温度范围 -40℃ 至 +85℃（Ta），具有热关断保护功能，能在异常升温时自动保护器件和负载。
二、主要特性
- 输出类型：固定（3.3V）
- 工作电压（最大输入）：30V
- 静态电流（Iq）：典型 2 µA（超低静态电流，适合电池供电）
- 最大输出电流：150 mA
- 输出极性：正极输出
- 工作温度：-40°C ~ +85°C（Ta）
- 保护功能：热关断（Thermal Shutdown）
- 封装：SOT-89-3，适合表面贴装工艺
三、应用场景
适用于需要低静态电流和中小电流输出的应用场景，例如手持设备、传感器节点、无线通信终端、便携式测量仪器、车载仪表（注意满足车规要求）及一般工业控制电源。
四、封装与布局建议
SOT-89-3 小封装有利于节省 PCB 面积。推荐在输入/输出端并联适当的去耦电容（如 1 µF 至 10 µF），靠近引脚布局以保证稳定性与瞬态响应。关于引脚定义、外形尺寸及推荐 PCB 焊盘，请以官方数据手册为准。
五、设计注意事项
- 输入端需满足最大工作电压限制（30V）；若存在高压瞬变，应在输入处增加限压或浪涌抑制元件。
- 虽然器件具备热关断保护，但在高功率散热条件下仍需考虑热阻与散热路径，必要时增大铜箔散热或采用散热结构。
- 为保证最低噪声与稳定性，输出端应使用制造商推荐的电容类型与 ESR 范围。
欲获取完整的电气参数、典型特性曲线、引脚排列及封装尺寸，请参考 BL9157-33BC3A 的官方规格书或联系贝岭技术支持。
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