LM2588SX-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2588SX-5.0/NOPB is a SIMPLE SWITCHER step-up/flyback switching regulator from Texas Instruments, housed in a TO-263-7 package. It operates with an input voltage range of 4 V to 40 V and provides a fixed 5 V output at up to 5 A. The device integrates a 1-A switch and supports flyback, boost, and forward topologies. It features a 200 kHz switching frequency, 11 mA operating current, and -40°C to +125°C junction temperature range.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch for efficient step-up and flyback conversion
• Fixed 5 V output option simplifies design without external feedback resistors
• Supports multiple topologies including boost, flyback, and forward configurations

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial power supplies requiring isolated or non-isolated regulation
• Battery-powered systems needing voltage step-up from low input sources
• Flyback converter designs for medium-power applications

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix (e.g., /NOPB) matches your bill of materials, as it indicates lead-free status. Confirm the package type is TO-263-7. Check moisture sensitivity level requirements for your assembly process. Ensure the 5 V fixed output variant aligns with your system voltage needs. Validate supplier authenticity through authorized channels.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this part when a fixed 5 V output is required from a wide 4–40 V input range. It suits designs needing up to 5 A output current in a single-ended topology. Consider thermal performance in the TO-263 package for heat dissipation. Compare against adjustable variants if flexible output voltage is needed instead.

Voltage Regulators - DC DC Switching Regulators Part Context

Part of TI’s SIMPLE SWITCHER family, designed for ease of use with minimal external components. The LM2588 series supports various topologies, making it versatile for different power conversion needs. The SX-5.0 variant specifically delivers a fixed 5 V output, targeting applications where standard logic or sensor voltages are required.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2588SX-ADJ/NOPB offers adjustable output voltage. LM2598SX-5.0/NOPB is a buck regulator, not compatible for step-up/flyback roles. Verify pinout and thermal characteristics before substitution.

Voltage Regulators - DC DC Switching Regulators FAQ

Can the LM2588SX-5.0 be used in a forward converter topology?

Yes, the LM2588 series supports forward converter configurations in addition to boost and flyback.

What is the maximum output current for the 5.0V variant?

The LM2588SX-5.0/NOPB can deliver up to 5 A output current.