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TI LMR51450SDRRR
Configuration
1 options
Configuration
26+
Available for RFQ
Technical data
Product details
19
specifications
Core information
- Product name
- TI(Texas Instruments) LMR51450SDRRR
- Type
- TI
- Minimum package
- 3000 圆盘
Technical parameters
- Electronic Component
- Electronic Component
- Electronic Component
- TI(Texas Instruments)
- Electronic Component
- LMR51450SDRRR
- Electronic Component
- 1
- Package
- WSON-12(3x3)
- Electronic Component
- DC-DC Power Supply IC
- Electronic Component
- 0.057g
- Electronic Component
- 1
- Features
- EMI Optimization
- Type
- Electronic Component
- Synchronous
- Electronic Component
- Electronic Component
- BM0221021394
- Operating Temperature
- 40℃~+150℃@(TJ)
- Operating Voltage
- 4V~36V
- Switching Frequency
- 1.1MHz
- Electronic Component
- Electronic Component
For datasheets, package documents, compatible-part guidance, or other technical resources, contact WMSIC customer service. Availability is confirmed case by case.
产品概述：LMR51450SDRRR
一、基本信息
LMR51450SDRRR 是德州仪器（Texas Instruments）推出的一款高效率降压型直流-直流（DC-DC）转换器。这款芯片具备可调输出电压范围，适用于多种电源方案，特别是需要高效能和宽输入电压范围的应用场景。LMR51450SDRRR 芯片采用WSON-12（3x3mm）封装，适合于空间受限的设计。
二、关键特性
宽输入电压范围：该芯片支持的输入电压范围为4V至36V，使其能够兼容多种电源输入电压，适用于电池供电和工业应用。
可调输出电压：LMR51450SDRRR的输出电压可调整范围为800mV至28V，用户可以根据具体需求实现输出电压的灵活设置。
高效率：在要求较高的效率场合，LMR51450SDRRR的效率可高达95%以上，大大减少了功耗和热量的产生，提升了系统的整体性能。
高纹波抑制：凭借其优秀的电源管理能力，该芯片在转换过程中提供了显著的纹波抑制，保证了输出电压的稳定性和抗干扰能力。
内置保护功能：LMR51450SDRRR 还集成了过载保护、过压保护和热关断等多项保护机制，保障了芯片和整个系统的安全运行。
可调频率：芯片的工作频率可以调节，使设计者可以实现对转换器开关频率的优化，从而提高效率或减少电磁干扰（EMI）。
温度特性：LMR51450SDRRR在-40°C至125°C的工作温度范围内依然保持良好的性能，适合在各种苛刻环境下使用。
三、应用领域
LMR51450SDRRR可广泛应用于多个行业和领域：
- 工业设备：适用于各种工业控制系统，提供稳定的电源支持。
- 电池供电设备：在便携式设备中，因其高效率、宽输入电压特性，LMR51450SDRRR非常理想。
- 通信设备：稳定的电源管理使其在无线通信、网络设备等方面表现优越。
- 汽车电子：汽车电子元件对稳定电源的需求极为严格，这款芯片恰好可以满足这种需求。
四、设计考虑
在设计使用LMR51450SDRRR的电源管理系统时，设计者需要注意以下几个方面：
输入电压选择：确保输入电压在支持范围内，并考虑到瞬态响应。
输出电容选择：根据负载需求选择合适的输出电容，以保证输出电压的稳定性和降低纹波。
PCB布局：合理的PCB布局可以有效降低EMI，确保高效的热管理。
热设计：由于在高负载情况下，芯片可能会产生较多热量，散热设计不可忽视，建议使用热仿真工具进行预测。
五、总结
LMR51450SDRRR 是一款高效、可靠、应用广泛的 DC-DC 降压转换器，适合多样化的电子设计需求。它的宽输入电压范围和可调输出特性，使其在现代电源管理方案中扮演着重要的角色。无论是在工业、消费电子、汽车电子还是其他领域，LMR51450SDRRR都为设计师提供了强大的电源管理解决方案，推动了创新与技术的发展。
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