The LM2575-3.3BT from Microchip Technology is a monolithic integrated circuit that provides all the active functions for a step-down (buck) switching regulator. This regulator is capable of driving a 1A load with excellent line and load regulation. The device is designed to minimize the number of external components to simplify the power supply design.

Featuring a fixed output voltage of 3.3V, the LM2575-3.3BT ensures a stable and reliable power supply for a variety of applications. With a wide input voltage range from 4V to 40V, it is suitable for systems that encounter diverse power supply conditions. This makes the LM2575-3.3BT an ideal choice for battery-powered devices, consumer electronics, and industrial hardware where efficiency and reliability are crucial.

The LM2575-3.3BT offers a high-efficiency replacement for popular three-terminal linear regulators. It significantly improves power efficiency, especially when the input voltage is significantly higher than the output voltage. This is achieved through its switch-mode design, which reduces wasted heat and extends battery life in portable systems.

This voltage regulator incorporates a fixed-frequency oscillator, a temperature-compensated reference, a cycle-by-cycle current limit, and a thermal shutdown for full protection under fault conditions. With its standard TO-220 package, the LM2575-3.3BT is easy to integrate into a wide range of electronic circuits.

Key features of the LM2575-3.3BT include:

• 3.3V fixed output voltage
• Up to 1A output current
• Wide input voltage range: 4V to 40V
• 52 kHz fixed frequency internal oscillator
• Thermal shutdown and current limit protection
• High efficiency
• Standard TO-220 packaging

Whether you are designing a new power supply or looking to replace an inefficient linear regulator, the LM2575-3.3BT by Microchip Technology is an excellent choice that offers reliability, efficiency, and ease of use.