Texas Instruments

LM5155DSSR

The LM5155DSSR is a high-performance, adjustable-output, step-down switching regulator (buck converter) from Texas Instruments. It is designed to provide a stable and efficient power supply for a wide range of applications.

Description:

The LM5155DSSR is a monolithic step-down switching regulator that uses a constant-frequency, current-mode control scheme. It features a wide input voltage range, low quiescent current, and high efficiency, making it suitable for a variety of power supply applications.

Features:

1. Wide input voltage range: The LM5155DSSR can operate with input voltages ranging from 4V to 40V, making it suitable for a wide range of power supply applications.
2. Adjustable output voltage: The output voltage can be easily adjusted using an external resistor divider, allowing for a wide range of output voltages.
3. High efficiency: The LM5155DSSR features high efficiency, with a typical efficiency of up to 95%.
4. Low quiescent current: The quiescent current of the LM5155DSSR is typically less than 1mA, making it ideal for battery-powered applications.
5. Protection features: The LM5155DSSR includes over-current protection, over-temperature protection, and under-voltage lockout to ensure safe and reliable operation.
6. Small form factor: The LM5155DSSR is available in a compact 10-pin MSOP package, making it easy to integrate into a variety of applications.

Applications:

The LM5155DSSR is suitable for a wide range of power supply applications, including:

1. Portable electronics: The LM5155DSSR is ideal for powering portable electronics such as smartphones, tablets, and wearable devices.
2. Industrial control systems: The LM5155DSSR can be used to provide a stable power supply for industrial control systems and other applications that require a high level of reliability.
3. Medical equipment: The LM5155DSSR is suitable for use in medical equipment that requires a stable and reliable power supply.
4. LED lighting: The LM5155DSSR can be used to power LED lighting applications, providing efficient and reliable power supply.
5. Power over Ethernet (PoE): The LM5155DSSR can be used to provide a stable power supply for PoE applications.

Overall, the LM5155DSSR is a versatile and efficient step-down switching regulator that is suitable for a wide range of power supply applications. Its high efficiency, low quiescent current, and wide input voltage range make it an ideal choice for many applications.