LM2586S-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2586S-5.0/NOPB is a fixed-output step-up (boost) switching regulator from Texas Instruments, designed for surface-mount applications in the TO-263 package. It provides a stable 5V output with a maximum switch current of 3A and operates at a nominal frequency of 100kHz. The device supports an input voltage range from 4V to 40V, making it suitable for various DC-DC conversion tasks. It features internal compensation for ease of use and includes thermal shutdown protection. The component complies with RoHS standards and is rated for operation between -40°C and +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch capable of delivering up to 3A output current
• Fixed 5V output configuration eliminates external feedback resistor requirements
• Internal frequency compensation simplifies design and reduces external component count
• Thermal shutdown protection safeguards against overheating during fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered systems requiring voltage step-up
• General-purpose DC-DC power supply modules
• Industrial control system power distribution
• Automotive electronics auxiliary power circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' indicates lead-free packaging compliant with RoHS directives. Confirm the 'S' designation corresponds to the TO-263 surface-mount package variant rather than through-hole options. Ensure the fixed 5.0V output version matches the circuit requirement, as adjustable variants exist within the same family. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an input source ranging between 4V and 40V. It is appropriate for designs needing up to 3A load current without complex external feedback networks. Consider the TO-263 package for adequate thermal dissipation in space-constrained PCB layouts. Evaluate the 100kHz switching frequency against electromagnetic interference constraints and passive component size requirements.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the SIMPLE SWITCHER family of high-efficiency step-up regulators. It shares architectural similarities with other LM2586 variants but differs in output voltage configuration. The series is known for integrating the power switch and control logic into a single monolithic IC, reducing board space compared to discrete solutions.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct substitutes include LM2586SX-5.0/NOPB for identical specifications in tape-and-reel packaging. LM2586T-5.0/NOPB serves as a through-hole alternative if surface-mount constraints are not applicable. Verify pinout compatibility and thermal performance characteristics before swapping packages.