TPS79301DBVRQ1 by TI is available from Shenzhen Homehta Technology Co., Ltd.. Request the latest price, stock availability, datasheet and sourcing support for your BOM and electronic component purchasing needs.
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🧩 一、型号完整确认与封装信息
| 项目 | 内容 |
|---|---|
| 完整型号 | TPS79301DBVRQ1 |
| 品牌 | Texas Instruments (TI) — 德州仪器 |
| 型号分解 | TPS79301 = 基础型号(可调输出LDO) DBV = 封装代码 → SOT-23-5(5引脚小外形晶体管封装) R = 卷带包装(Tape & Reel) Q1 = 汽车级认证(AEC-Q100) |
| 封装形式 | SOT-23-5 (DBV Package),5引脚,体积极小,适合紧凑型设计 |
| 引脚定义 | ① EN(使能)② GND(地)③ FB/NC(反馈/空脚)④ OUT(输出)⑤ IN(输入) |
| 参数 | 典型值 / 范围 | 说明 |
|---|---|---|
| 输入电压范围 | 2.7V ~ 5.5V | 适用于低压供电场景 |
| 输出电压范围 | 1.2V ~ 5.5V(可调) | 通过外部电阻分压网络设置 |
| 输出电流 | 200mA | 最大持续输出电流 |
| 压差(Dropout) | 典型 110mV @ 200mA | 极低压差,高效节能 |
| 电源纹波抑制比(PSRR) | 65dB @ 1kHz | 优秀的噪声抑制能力 |
| 输出噪声 | 32µV RMS(典型) | 超低噪声,适合射频/模拟电路 |
| 静态电流(Iq) | 典型 170µA | 低静态功耗 |
| 关断电流 | 1µA(典型) | 待机功耗极低 |
| 输出精度 | ±1%(典型) | 高精度输出 |
| 工作温度范围 | -40°C ~ +125°C | 汽车级宽温范围 |
| AEC-Q100认证 | ✅ 通过 | 符合车规标准 |
| 应用领域 | 具体场景 |
|---|---|
| 🚗 汽车电子 | ADAS摄像头模块、车载传感器、车载信息娱乐系统、车身控制模块(BCM)、车载雷达供电 |
| 📱 便携设备 | 蓝牙耳机、智能穿戴、手持仪器、便携医疗设备 |
| 📡 射频/无线模块 | WiFi/BT模块、GPS接收器、RF收发器供电(因其超低噪声特性) |
| 🎛️ 模拟/混合信号电路 | 精密运放供电、ADC/DAC参考电源、音频编解码器供电 |
| 🔋 电池供电设备 | 需要低压差以延长电池寿命的场景 |
低噪声 + 高PSRR + 低压差 + 车规级 → 这四个特性使其在汽车摄像头/雷达模块供电中非常受欢迎。
用量预测: 由于 汽车智能化(ADAS、域控、激光雷达) 持续增长,该芯片作为车规级LDO的需求在未来 12~18个月将持续温和增长。
供需判断: TI产的汽车级物料整体供应稳定,但若遇到TI产能调配,交期可能从8周延长至12~16周。
| 维度 | 结论 |
|---|---|
| 芯片定位 | TI车规级低噪声低压差可调LDO稳压器 |
| 最核心优势 | ✅ 车规认证 + ✅ 超低噪声32µV + ✅ 低压差110mV |
| 首选应用场景 | 汽车ADAS摄像头/雷达模块供电、车载射频供电 |
| 价格评估 | 近期 ¥3.2~¥4.0/pcs,属于车规LDO合理价位 |
| 库存状况 | 全网库存中等(约40k~60k),暂不缺货,建议备货周期内下单 |
| 最佳替代方案 | 非车规用 TPS79301DBVR(同封装同性能,价格更低) |
| 风险提示 | 若TI产能调整,车规Q1版本交期可能延长,建议提前4~6周锁定订单 |
如您需要某一维度的 更深层分析(例如某个替代料的详细波形对比、某平台的具体报价、或者PCB Layout注意事项),请随时告诉我!我很乐意继续为您服务 😊
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