LM2587S-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2587S-12/NOPB is a SIMPLE SWITCHER step-up/flyback regulator from Texas Instruments. It operates with an input voltage range of 4 V to 40 V and provides a fixed 12 V output. The device supports up to 6.5 A output current with a switching frequency of 100 kHz. It features a TO-263-5 package, -40 °C to +125 °C operating temperature range, 20 mV load regulation, and 11 mA quiescent current.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated flyback topology for isolated or non-isolated step-up applications
• Fixed 12 V output configuration for standard rail generation
• High efficiency operation at 100 kHz switching frequency
• Built-in thermal shutdown and current limiting protection

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supply modules
• Battery-powered equipment requiring voltage boost
• Telecommunications infrastructure power systems
• Automotive electronics power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer designation as Texas Instruments, as National Semiconductor was acquired. Confirm the suffix NOPB indicates lead-free and RoHS compliance. Ensure the TO-263-5 package matches the design footprint. Check humidity sensitivity level requirements for surface mount assembly processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a wide 4-40 V input range. The 100 kHz frequency allows for smaller passive components compared to lower frequency alternatives. Consider the 6.5 A capability for high-current loads. Verify thermal management needs due to the TO-263-5 package constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of the LM2587 SIMPLE SWITCHER family, designed for high-efficiency DC-DC conversion. The LM2587 series integrates a switch, controller, and protection circuits in a single monolithic IC. This specific variant offers a fixed output, simplifying design implementation for standard voltage rails in various power management applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2587S-ADJ/NOPB (Adjustable Output)

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current capability?

The device supports up to 6.5 A output current.

Does it support isolated topologies?

Yes, the integrated flyback topology supports isolated applications.