Texas Instruments

LM5119PSQX/NOPB  

DC DC Switching Controllers

The LM5119PSQX/NOPB is a high-efficiency synchronous step-down (buck) regulator from Texas Instruments. It is designed to provide a highly efficient and compact solution for converting input voltages as high as 28V to lower output voltages, with output currents up to 3A.

Description:

The LM5119PSQX/NOPB is a synchronous step-down regulator that uses a constant on-time control scheme to regulate the output voltage. It features a wide input voltage range, low quiescent current, and high efficiency, making it ideal for a variety of applications.

Features:

1. Wide input voltage range: The LM5119PSQX/NOPB can accept input voltages from 4.5V to 28V, making it suitable for a wide range of applications.
2. High efficiency: The regulator is designed for high efficiency, with efficiencies up to 96%.
3. Low quiescent current: The quiescent current is typically 35µA in normal operation, which helps to minimize power consumption in battery-powered applications.
4. Synchronous rectification: The LM5119PSQX/NOPB uses synchronous rectification to minimize power losses and improve efficiency.
5. Programmable soft-start: The regulator features a programmable soft-start function to reduce inrush current during startup.
6. Protection features: The LM5119PSQX/NOPB includes over-current protection, over-temperature protection, and thermal shutdown protection to ensure safe and reliable operation.

Applications:

The LM5119PSQX/NOPB is suitable for a wide range of applications, including:

1. Portable devices: The high efficiency and low quiescent current make it ideal for battery-powered devices such as smartphones, tablets, and wearable devices.
2. Industrial applications: The wide input voltage range and robust protection features make the LM5119PSQX/NOPB suitable for industrial applications where reliability is critical.
3. Automotive applications: The regulator can be used in automotive applications where a wide input voltage range and high efficiency are required.
4. Power supplies: The LM5119PSQX/NOPB can be used as a step-down regulator in power supply applications, providing a stable and efficient output voltage.

Overall, the LM5119PSQX/NOPB is a versatile and efficient step-down regulator that offers a range of features and benefits for a variety of applications.

LM5119PSQX/NOPB Documents

Download datasheets and manufacturer documentation for LM5119PSQX/NOPB

PCN Assembly/Origin :

Alt Base Metal 31/Jul/2020      

Datasheets :

LM5119      

Design Resources :

LM5119 Design with WEBENCH® Power Designer