LM2575GDP-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575GDP-3.3 is a fixed-output step-down switching regulator manufactured by TAEJIN Technology Co., part of the LM2575 series. It provides a fixed 3.3V output with a guaranteed 1A load current capability. The device operates from a wide input voltage range and utilizes a 52kHz fixed-frequency internal oscillator. Designed for high efficiency, it requires only four external components. Key protection features include thermal shutdown and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 3.3V output version within the LM2575 family
• Guaranteed 1A output current capability
• Internal 52kHz fixed frequency oscillator
• TTL shutdown capability for low power standby mode

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load DC/DC conversion
• Pre-regulator circuits for switching regulators
• Efficient step-down power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation carefully, as the LM2575 series is widely produced by multiple vendors including Texas Instruments, onsemi, and Microchip. Confirm that the specific 'TAEJIN' branding matches your supply chain requirements. Check datasheet revisions and pinout compatibility if substituting with parts from other manufacturers to ensure correct integration into existing designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a simple, cost-effective buck converter is needed for 3.3V applications. It is suitable for designs prioritizing minimal external component count. Ensure the input voltage stays within the specified range and that the required 1A current does not exceed thermal limits without adequate heatsinking. Verify availability of standard inductors compatible with the 52kHz switching frequency.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2575 family of easy-switcher voltage regulators. The series offers various fixed output voltages (3.3V, 5.0V, 12V, 15V) and an adjustable version. It is designed for straightforward implementation in step-down topologies, requiring minimal external passive components compared to more complex controller-based solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM2575-3.3 from other manufacturers such as Texas Instruments or onsemi. Verify package compatibility and electrical parameter equivalence before replacement.