LM2575TV-3.3G

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575TV-3.3G is a monolithic integrated circuit step-down switching regulator manufactured by onsemi, designed to drive a 1A load with excellent line and load regulation. It operates within an input voltage range of 4.75V to 40V, providing a fixed 3.3V output. The device utilizes a fixed 52kHz internal oscillator and requires minimal external components for implementation. It features built-in frequency compensation, thermal shutdown, and current limiting. The component is housed in a TO-220-5 through-hole package and supports an operating junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a fixed-frequency oscillator and internal error amplifier for simplified design
• Includes thermal shutdown and cycle-by-cycle current limiting for system protection
• Supports external shutdown control to minimize standby power consumption

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion modules
• Pre-regulator stages for linear post-regulators
• Efficient battery-powered systems requiring step-down topology

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TV' against the manufacturer's official datasheet to confirm pinout and packaging variations. Confirm RoHS compliance status via the latest environmental declaration. Check for End-of-Life notifications or Product Change Notices that may affect long-term availability. Ensure the supplier provides valid traceability documentation for quality assurance purposes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current buck converter is required for through-hole assembly. The fixed 3.3V output eliminates the need for external feedback resistors. Consider the TO-220-5 package for applications where manual soldering or high thermal dissipation capabilities are necessary compared to surface-mount alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 series of SIMPLE SWITCHER regulators, known for replacing standard three-terminal linear regulators to reduce heat sink size. The 'TV' designation typically indicates a specific tube packaging variant within the broader family. The 'G' suffix denotes Green/RoHS-compliant manufacturing. This series is widely used in industrial and commercial power supplies due to its simplicity and reliability.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575T-3.3G (onsemi)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575TV-3.3G?

The maximum input voltage is 40V.

Does the LM2575TV-3.3G support external shutdown?

Yes, the device includes an external shutdown feature that reduces quiescent current significantly.