LM2587SX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2587SX-ADJ/NOPB is a SIMPLE SWITCHER 5A Flyback Regulator from Texas Instruments, designed for wide input voltage applications. It operates within an input range of 4 V to 40 V and supports adjustable output voltages. The device features a fixed switching frequency of 100 kHz and delivers up to 6.5 A output current in boost or flyback topologies. It is housed in a TO-263-5 surface-mount package and functions reliably across a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch capable of handling high current loads for efficient step-up and flyback conversion
• Fixed internal switching frequency simplifies external component selection and reduces filter size
• Built-in thermal shutdown and current limit protection ensure robust operation under fault conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial control systems requiring isolated or non-isolated DC-DC conversion
• Battery-powered equipment needing step-up regulation from low cell voltages
• General-purpose power supplies with wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as NOPB for lead-free compliance when ordering. Confirm that the TO-263-5 package variant matches your PCB footprint requirements. Ensure compatibility with RoHS directives if applicable to your manufacturing region. Cross-reference datasheet revision levels to confirm pinout consistency with existing designs.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator for applications requiring high efficiency and minimal external components in a compact surface-mount form factor. The adjustable output version allows customization for specific voltage rails without changing the core controller. Consider thermal management strategies given the 5A capability and TO-263 package constraints. Evaluate input voltage stability to ensure it remains within the 4V to 40V operational window during all load transients.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM2587 family of SIMPLE SWITCHER regulators, which are known for integrating power switches and control logic into a single monolithic IC. The series includes fixed and adjustable output variants, catering to diverse power supply needs in industrial and consumer electronics. The LM2587SX-ADJ specifically targets designs requiring flexible output voltage settings while maintaining high current delivery capabilities.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2587S-ADJ/NOPB is a direct equivalent with identical electrical specifications and pinout. LM2587T-ADJ/NOPB offers the same functionality but in a through-hole TO-220 package, suitable for different mounting requirements.