Texas Instruments

LM5119PSQE/NOPB

The LM5119PSQE/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 a lower output voltage, with output currents up to 3A.

Description:

The LM5119PSQE/NOPB is a monolithic step-down regulator that integrates a high-side and low-side MOSFET, an inductor, and other passive components on a single chip. It features a high-efficiency synchronous buck topology with a built-in power MOSFET, which allows for high efficiency and low thermal dissipation.

Features:

1. Input voltage range: 4.5V to 28V
2. Output voltage: Adjustable from 0.9V to the input voltage minus the dropout voltage
3. Output current: Up to 3A
4. High efficiency: Up to 96% efficiency
5. Synchronous rectification for improved efficiency at light loads
6. Integrated power MOSFETs for high-side and low-side switching
7. Small form factor: Available in a 20-pin QFN package
8. Wide operating temperature range: -40°C to 125°C
9. Programmable soft-start and output discharge
10. Protection features: Over-current protection, over-temperature protection, and thermal shutdown

Applications:

The LM5119PSQE/NOPB is suitable for a wide range of applications where efficient power conversion is required. Some common applications include:

1. Portable devices: Smartphones, tablets, and wearable devices
2. Power banks and battery chargers
3. Industrial and automotive systems
4. LED lighting and drivers
5. Telecommunication equipment
6. Computer and server systems
7. Medical equipment

The LM5119PSQE/NOPB's high efficiency, small form factor, and adjustable output voltage make it an ideal choice for applications where space and power consumption are critical factors.