LM2575SX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575SX-3.3/NOPB is a SIMPLE SWITCHER step-down voltage regulator from Texas Instruments, operating at a fixed switching frequency of 52 kHz. It provides a fixed output voltage of 3.3 V with a maximum output current of 1 A. The device supports an input voltage range from 4 V to 40 V and utilizes a TO-263-5 (D2PAK) surface-mount package. It features internal frequency compensation and a fixed-frequency control circuit for ease of design.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic switching regulator designed for high-efficiency step-down conversion
• Fixed 52 kHz switching frequency minimizes external component size and cost
• Internal frequency compensation simplifies circuit design and layout requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation in distributed power systems
• Pre-regulator circuits for switching regulators
• Efficient buck converters for embedded systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' against the official Texas Instruments datasheet to confirm pinout and thermal pad configuration differences compared to standard 'S' variants. Ensure the component matches the required lead-free RoHS specifications and moisture sensitivity level for your assembly process.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a fixed 3.3 V output is required with up to 1 A load capability. It is suitable for designs needing a compact solution with minimal external components. Consider the TO-263-5 package for its thermal performance relative to smaller SMD packages.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2575 family of SIMPLE SWITCHER regulators. These devices are widely used for their robustness and simplicity in DC-DC conversion applications. The series offers various fixed voltage options and adjustable versions to cover diverse power supply needs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575S-3.3/NOPB: Standard TO-263-5 variant with identical electrical characteristics.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum input voltage for the LM2575SX-3.3/NOPB?

The maximum input voltage is 40 V.

Does the LM2575SX-3.3/NOPB include internal feedback resistors?

Yes, it provides a fixed 3.3 V output, eliminating the need for external feedback resistors.