Texas Instruments

LM5155DSSR  

DC DC Switching Controllers

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.

LM5155DSSR Documents

Download datasheets and manufacturer documentation for LM5155DSSR

Datasheets :

LM5155      

HTML Datasheet :

LM5155