LM2576HVT-15

Voltage Regulators - DC DC Switching Regulators Overview

The LM2576HVT-15/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 4 V to 63 V and provides a fixed 15 V output at up to 3 A load current. The device utilizes a buck topology with a typical switching frequency of 52 kHz. It is housed in a TO-220-5 through-hole package and supports operation within a junction temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic power switch capable of delivering 3 A output current
• Fixed 15 V output option eliminates external feedback resistor networks
• Internal frequency compensation simplifies minimum external component requirements
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring high input voltage conversion
• Pre-regulation stages for downstream switching regulators
• Battery-powered equipment utilizing high-voltage battery sources
• Industrial control systems operating under harsh environmental conditions

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix /NOPB indicates lead-free and RoHS compliance when sourcing. Confirm the specific package variant matches the required mounting style. Ensure the fixed 15 V output aligns with system requirements, as adjustable versions exist. Cross-reference the manufacturer part number against official distributor catalogs to avoid obsolete or non-compliant alternatives.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 15 V output is required from inputs up to 63 V. The TO-220-5 package suits through-hole designs needing robust thermal dissipation. Consider the 52 kHz switching frequency for inductor sizing. Verify that the 3 A continuous current rating meets peak load demands without exceeding thermal limits.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2576HV series of SIMPLE SWITCHER regulators. It shares architectural similarities with other members like the LM2576HVT-ADJ but offers a fixed voltage configuration. The series is characterized by low external component counts and high efficiency, targeting cost-sensitive power management solutions in industrial and commercial sectors.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2576HVT-15/LB03 is documented as a related variant within the same family. Verify pinout compatibility and electrical specifications before substitution. Check for updated manufacturing notices regarding package changes or material composition updates.