LM2575HVN-15/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2575HVN-15/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments, designed for high-voltage input applications up to 60V. It delivers a fixed 15V output with a maximum current of 1A. The device operates at a switching frequency of 52kHz and supports an input voltage range of 4V to 60V. It features internal frequency compensation and a fixed-frequency oscillator, simplifying design requirements. The component is housed in a TO-220-5 package and is rated for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch capable of handling inputs up to 60V
• Fixed switching frequency of 52kHz reduces external component count
• Internal frequency compensation eliminates the need for external loop compensation components
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage tolerance
• Battery-powered systems with wide input voltage ranges
• Post-regulation stages for bus distribution networks
• Efficient step-down conversion for industrial control modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'N' indicates the through-hole TO-220 package variant, distinct from surface-mount options like 'S' or 'HVS'. Confirm 'NOPB' denotes lead-free and RoHS compliance status per manufacturer specifications. Ensure the fixed 15V output version matches the specific circuit requirement, as other voltage variants exist within the same family. Cross-reference the datasheet revision date to confirm pinout and electrical characteristics consistency.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-input voltage buck converter is required for through-hole assembly. The fixed 15V output suits applications needing a stable intermediate rail from higher voltage sources. Consider the 1A current limit for load requirements and the 52kHz frequency for inductor sizing. Evaluate thermal performance in the TO-220 package against expected power dissipation levels under full load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2575 family of SIMPLE SWITCHER regulators, known for ease of use and high efficiency. The 'HV' designation signifies high-voltage input capability compared to standard versions. The LM2575 series provides a complete solution for DC-DC conversion, integrating the controller, driver, and power switch into a single monolithic IC structure.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2575HVN-15: Non-RoHS compliant predecessor with identical electrical specifications and pinout.