LM2575HVT-5.0/ELLI859

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVT-5.0/ELLI859 is a SIMPLE SWITCHER® 1A step-down voltage regulator from Texas Instruments, part of the LM2575HV series. It operates with an input voltage range of 4V to 60V and provides a fixed 5.0V output at up to 1A. The device utilizes pulse width modulation (PWM) control mode and features a switching frequency of approximately 52kHz. Designed for through-hole installation in a TO-220 package, it supports an operating temperature range from -40°C to +125°C. Key electrical parameters include a maximum efficiency of 77% and output ripple/noise of 150mV.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch rated for 1A continuous load current
• Fixed internal feedback reference for precise output regulation
• Built-in thermal shutdown and current limit protection circuits
• Requires minimal external components for standard buck topology implementation

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply architectures requiring high-voltage step-down conversion
• On-board regulation modules for industrial equipment
• Battery-powered systems utilizing high-voltage source inputs
• General-purpose DC-DC converter stages in consumer electronics

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity against Texas Instruments specifications due to potential availability variations. Confirm that the ELLI859 suffix denotes specific packaging or marking variations without altering functional performance. Ensure compliance with RoHS directives if required by your application standards. Cross-reference datasheet revisions to confirm pinout consistency and parameter stability before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-input voltage buck regulator is needed for through-hole designs. The fixed 5.0V output simplifies design compared to adjustable variants. Consider the TO-220 package for adequate thermal dissipation under full load conditions. Evaluate the 52kHz switching frequency against electromagnetic interference requirements and inductor size constraints relative to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575HV family, which extends the standard LM2575 capabilities to handle higher input voltages up to 60V. The 'HVT' designation indicates a high-voltage version housed in a through-package (TO-220). This series is widely recognized for its simplicity and reliability in medium-power applications, serving as a foundational solution for basic DC-DC conversion tasks in various electronic systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575HVT-5.0/NOPB serves as a direct equivalent replacement within the same product line.