LM2587T-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2587T-5.0/NOPB is a monolithic integrated circuit from the SIMPLE SWITCHER series, designed for flyback, boost, and forward converter applications. It features a fixed 5V output with a maximum switch current of 3A. The device operates within an input voltage range of 4V to 40V and supports a switching frequency between 100 kHz and 200 kHz. It utilizes current mode control for improved transient response and line regulation. The component includes internal protection mechanisms such as thermal shutdown, current limiting, and undervoltage lockout. It is housed in a TO-220-7 through-hole package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Current mode control architecture for enhanced stability and transient performance
• Integrated power switch rated for 3A continuous operation
• Internal soft-start capability to limit inrush current during startup
• Comprehensive protection suite including thermal shutdown and cycle-by-cycle current limiting

Voltage Regulators - DC DC Switching Regulators Applications

• Flyback converter designs
• Boost converter topologies
• Forward converter circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout compatibility and electrical tolerances. Ensure the selected variant matches the required thermal management strategy for the intended operating environment. Cross-reference the datasheet revision to validate parameter consistency before finalizing procurement specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required for isolated or non-isolated DC-DC conversion. Consider the 3A switch current limit and the TO-220-7 package for thermal dissipation requirements. Evaluate the need for external transformer design if utilizing the flyback topology, as the device supports various magnetic component configurations.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2587 family of wide input voltage step-up/flyback regulators. It shares architectural similarities with other members like the LM2586 but offers distinct current ratings and packaging options. The SIMPLE SWITCHER branding indicates a focus on simplified design implementation with minimal external component count.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2587S-5.0/NOPB (Surface Mount Variant)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum switch current rating for the LM2587T-5.0?

The device features an integrated power switch capable of handling a maximum current of 3A.

Does the LM2587T-5.0 include internal protection features?

Yes, it includes thermal shutdown, cycle-by-cycle current limiting, and undervoltage lockout to protect the device under fault conditions.