Texas Instruments

LM2575SX-3.3/NOPB

The LM2575SX-3.3/NOPB is a step-down (buck) switching regulator integrated circuit (IC) manufactured by Texas Instruments. It is designed to provide a stable and efficient DC voltage output from a higher input voltage source. Here's a brief description, features, and applications of the LM2575SX-3.3/NOPB:

Description:

The LM2575SX-3.3/NOPB is a fixed-output, synchronous, step-down switching regulator that offers a compact solution for converting higher input voltages to a regulated 3.3V output. It is available in a_NOPB (No Lead Pull Back) package, which is a leadless, surface-mount package that helps reduce the overall size of the device.

Features:

1. Fixed 3.3V output voltage.
2. Wide input voltage range: 4V to 40V.
3. Synchronous rectification for high efficiency.
4. Thermal shutdown protection to prevent damage due to overheating.
5. Over-current protection to safeguard against excessive load currents.
6. Output short-circuit protection.
7. Low quiescent current (typically 1mA).
8. Compact package size (NOPB).

Applications:

1. Power supply for microprocessors and other digital logic circuits requiring a stable 3.3V supply.
2. Voltage regulation in battery-powered devices, such as smartphones, tablets, and laptops.
3. Voltage conversion in portable electronic devices, such as GPS units and Bluetooth devices.
4. Powering low-voltage sensors and actuators in industrial control systems.
5. Providing regulated power to USB devices and other peripherals.
6. Voltage regulation in telecommunications equipment and networking devices.
7. Power supply for LED lighting applications.

The LM2575SX-3.3/NOPB is a versatile and efficient switching regulator that can be used in a wide range of applications where a stable 3.3V output is required. Its compact size and robust protection features make it suitable for use in both small and complex electronic systems.