LM2575HVSX-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVSX-3.3 is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a monolithic integrated circuit step-down (buck) switching regulator. It provides a fixed 3.3V output with a maximum load current of 1A. The device operates with an input voltage range up to 60V and utilizes a fixed 150kHz internal oscillator. It is housed in a TO-263 surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage switch capable of driving 1A loads
• Fixed 3.3V output option for simplified design
• Internal frequency compensation and fixed-frequency oscillator
• Includes thermal shutdown and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Direct-in-board regulation from higher bus voltages
• Efficient pre-regulators for linear regulators

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component status carefully as this specific part number may be obsolete or discontinued. Confirm availability through authorized distributors or check for direct replacement options such as the LM2575HVSX-3.3/NOPB variant. Ensure the ordering suffix matches the required RoHS compliance and packaging specifications before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required with an input voltage up to 60V. The TO-263 package suits surface-mount applications requiring robust thermal performance. Consider the 150kHz switching frequency for trade-offs between component size and efficiency compared to lower frequency variants.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2575HV series of SIMPLE SWITCHER converters. These regulators are designed as efficient alternatives to traditional linear regulators, significantly reducing heat dissipation requirements. The series supports various output voltages and includes built-in protection features for reliable operation in industrial environments.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2575HVSX-3.3/NOPB is listed as a direct substitute. Verify pinout compatibility and ensure the replacement meets the same electrical specifications and package dimensions for seamless integration into existing designs.