LM2575HVT-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVT-ADJ/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-voltage input applications. It operates with an input voltage range of 4V to 60V and delivers a maximum output current of 1A. The device utilizes a buck topology with a fixed switching frequency of 58kHz. It features an adjustable output voltage range starting from 1.23V up to the input voltage limit. The component is housed in a TO-220-5 through-hole package and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic converter simplifies design by incorporating a fixed-frequency oscillator, driver, and high-voltage switch.
• Built-in thermal shutdown circuitry protects the device during overload or excessive junction temperature conditions.
• Internal freewheeling diode allows for simplified external component selection and reduced board space requirements.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power systems requiring high input voltage tolerance
• Efficient pre-regulators for linear post-regulated power supplies
• Battery-powered equipment utilizing high-voltage sources

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free and RoHS compliance status as defined by Texas Instruments. Confirm the TO-220-5 package variant matches your thermal management requirements. Ensure the supplier provides valid traceability documentation for automotive or industrial qualification if required by your application standards.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this model when input voltages exceed 40V, distinguishing it from the standard LM2575 series limited to 40V. The adjustable output version offers flexibility for custom voltage rails compared to fixed-output variants. Consider the TO-220 package for its superior heat dissipation capabilities in high-current continuous operation scenarios.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2575HV family of SIMPLE SWITCHER regulators, which are optimized for high-input voltage environments. It shares functional similarities with the LM2576 series but differs in output current capacity and specific internal protection thresholds. The part represents a mature technology platform widely used in industrial power conversion designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include other high-voltage buck regulators from Texas Instruments such as the LM2575HVS-ADJ/NOPB for surface mount applications. Cross-brand equivalents require careful verification of pinout compatibility, switching frequency alignment, and thermal performance characteristics.