LM2575HVT-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVT-5.0 is a 1A step-down switching voltage regulator manufactured by TAEJIN Technology Co., part of the SIMPLE SWITCHER family. It operates with a fixed 52kHz internal oscillator and provides a regulated 5.0V output. The device supports a wide input voltage range, requiring only four external components for implementation. It features TTL shutdown capability for low power standby modes and includes thermal shutdown and current limit protection. The component is housed in a TO-220 package and is designed for high efficiency using readily available standard inductors.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Fixed 5.0V output voltage with guaranteed 1A output current capability
• Integrated 52kHz fixed frequency internal oscillator
• TTL shutdown pin enables low power standby mode operation
• Built-in thermal shutdown and current limit protection circuits

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for distributed power architectures
• Pre-regulator stages for downstream switching regulators
• Efficient buck conversion from higher voltage bus rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify that the specific manufacturer designation corresponds to TAEJIN Technology Co. rather than Texas Instruments or other legacy producers, as the LM2575 series has multiple sources. Confirm the package type matches the required board layout, specifically the TO-220 form factor. Ensure the datasheet confirms the 5.0V fixed output variant and check for RoHS compliance status if required by assembly specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5.0V output is required at up to 1A with minimal external component count. It is suitable for applications where a 52kHz switching frequency is acceptable and space constraints allow for a TO-220 package. Consider alternatives if lower quiescent current or higher switching frequencies are necessary for tighter ripple requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of SIMPLE SWITCHER regulators, which are widely recognized for their ease of use and robust protection features. The HVT suffix typically denotes a high-voltage tolerant version in the TO-220 package. While originally popularized by Texas Instruments, other manufacturers like TAEJIN produce compatible variants adhering to similar functional specifications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM2575T-5.0/NOPB from Texas Instruments or equivalent parts from ON Semiconductor and Micrel. Verify pinout compatibility and thermal performance characteristics before substitution.