"LMR70503简易开关型升降压转换器及负输出电压系统性能"

The LMR70503 is a simple switcher buck-boost converter designed for generating negative output voltage in µSMD applications. With a VIN range of 2.8V to 5.5V, this converter is versatile and can be used in a variety of different scenarios. The device offers high efficiency across varying loads and input voltages, making it a reliable and efficient option for power conversion. The LMR70503 features an efficiency curve that demonstrates its performance at different load levels and input voltages. At a VIN of 2.8V, the efficiency ranges from 30% to 80% across loads from 10mA to 100mA. Similarly, at VIN levels of 3.3V, 4.0V, 5.0V, and 5.5V, the efficiency varies across different loads. This data provides valuable information for designing and optimizing power systems using the LMR70503. The device includes input and output capacitors, as well as a feedback voltage reference and resistors for configuration. With a comprehensive set of features, the LMR70503 is a versatile and effective solution for generating negative output voltage in µSMD applications. Overall, the LMR70503 is a high-performance buck-boost converter that offers efficiency, reliability, and versatility. Its wide VIN range and efficient conversion make it well-suited for a variety of power conversion applications, and its compact µSMD form factor allows for easy integration into designs. Whether used in industrial, automotive, or consumer electronics, the LMR70503 is a dependable choice for generating negative output voltage in µSMD applications. For more information on the LMR70503, refer to the datasheet available on the Texas Instruments website.