Texas Instruments

LM2575HVT-ADJ/NOPB

The LM2575HVT-ADJ/NOPB is a high-voltage, adjustable output voltage step-down switching regulator (buck converter) manufactured by Texas Instruments. It is designed to provide efficient and reliable power conversion in various applications.

Description:

The LM2575HVT-ADJ/NOPB is a monolithic integrated circuit that provides a highly efficient step-down voltage conversion. It features a fixed frequency current mode architecture with a high 150kHz switching frequency, allowing for the use of smaller external components. The device is available in a thermally enhanced Through-Hole (HTSSOP-24) package.

Features:

1. Wide input voltage range: 4V to 40V
2. Adjustable output voltage: Can be set using an external resistor network
3. High efficiency: Up to 94% depending on the input and output voltages
4. Fixed 150kHz switching frequency
5. Over-current protection (OCP) and thermal shutdown (TSD) for added safety
6. Synchronous rectification for improved efficiency at higher input voltages
7. Low quiescent current: Typically 0.5mA, which reduces power consumption during no-load conditions
8. Internal soft-start and current limiting for enhanced reliability
9. Thermal compensation for improved stability over temperature variations

Applications:

1. Power supplies for industrial and consumer electronics
2. Distributed power systems in telecommunications equipment
3. Battery charging and power management for portable devices
4. DC-DC conversion in automotive and medical equipment
5. Power conversion in LED lighting systems
6. Voltage regulation for microprocessors and other sensitive loads
7. General-purpose power conversion in various electronic devices

The LM2575HVT-ADJ/NOPB is a versatile and efficient step-down switching regulator that can be used in a wide range of applications requiring high-voltage input and adjustable output voltage. Its high efficiency, reliability, and ease of use make it a popular choice for power conversion in various electronic systems.