LM2575HVT-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVT-15/NOPB is a SIMPLE SWITCHER® 1A step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It operates with an input voltage range up to 60V and provides a fixed 15V output at 1A. The device utilizes pulse-width modulation (PWM) control mode and features a switching frequency of approximately 52kHz. Packaged in a TO-220-5 through-hole format, it supports an operating junction temperature range from -40°C to +125°C. This regulator integrates a fixed-frequency oscillator and internal compensation for ease of design.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for high-voltage operation
• Fixed internal switching frequency eliminates external timing components
• Built-in thermal shutdown and current limit protection circuits
• Requires minimal external passive components for standard buck topology

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Battery-powered systems with wide input voltage ranges
• Pre-regulator stages for downstream switching regulators
• Efficient step-down conversion for industrial control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance status as per the latest manufacturer datasheet. Confirm the package type is TO-220-5 for through-hole mounting. Ensure the specific revision matches your schematic requirements. Cross-reference the official TI document number for accurate electrical characteristics before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15V output is required from inputs up to 60V. The TO-220-5 package suits applications needing robust thermal performance without active cooling. Compare against the LM2575S variant if surface-mount technology is preferred. Consider the 1A continuous current limit when sizing external inductors and capacitors for the target load profile.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of SIMPLE SWITCHER regulators, known for reducing design time through integrated power switches. The 'HV' designation indicates high-voltage input capability compared to standard variants. The 'T' suffix denotes the TO-220 through-hole package, while 'HVS' would indicate the surface-mount D2PAK equivalent. This series serves as a foundational solution for basic DC-DC conversion tasks.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2575HVT-15/NOPB is the lead-free, RoHS-compliant version of the LM2575HVT-15. For pin-compatible alternatives, consider the LM2596 series for higher current capabilities or the LM2576 series for similar specifications. Verify that substitute parts maintain the same 60V input rating and TO-220-5 footprint to ensure mechanical compatibility.