LM2576TV-3.3G

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576TV-3.3G is a monolithic integrated circuit step-down (buck) switching regulator manufactured by onsemi. It provides a fixed 3.3V output capable of driving up to 3A load current. The device operates with an input voltage range from 4V to 40V and utilizes a fixed-frequency internal oscillator at 52 kHz. Packaged in a TO-220-5 through-hole case, it includes internal frequency compensation and thermal shutdown protection. The component supports operation across a temperature range of -40°C to +125°C junction temperature.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 52 kHz fixed-frequency oscillator and internal frequency compensation to minimize external component count.
• Includes cycle-by-cycle current limiting and thermal shutdown for comprehensive fault protection.
• Offers external shutdown capability with low standby current consumption.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Pre-regulator circuits for switching regulators
• Efficient step-down converters replacing linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'TV' against the manufacturer's official datasheet to confirm package type and pinout configuration. Confirm RoHS compliance status as indicated in the latest product documentation. Check for end-of-life notifications or discontinuance alerts prior to finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with high efficiency compared to linear regulators. Ensure the application demands a maximum load current within the 3A rating. Verify that the available PCB space accommodates the TO-220-5 through-hole package dimensions and associated heatsinking requirements if necessary.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2576 series of SIMPLE SWITCHER power converters. The series is designed to simplify the design of buck or buck/boost converter applications. It serves as a high-efficiency replacement for traditional three-terminal linear regulators, significantly reducing heat sink size and overall system cost.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the same family. Verify electrical parameters such as output voltage tolerance and switching frequency when considering cross-manufacturer substitutes.