LM2586T-3.3

Voltage Regulators - DC DC Switching Regulators Overview

The LM2586T-3.3 is a SIMPLE SWITCHER 3A Flyback Regulator manufactured by National Semiconductor, now Texas Instruments. It operates with an input voltage range of 4V to 40V and provides a fixed output of 3.3V. The device supports a maximum switch current of 3A and features a switching frequency characteristic typical of the series. It includes shutdown functionality for power management efficiency.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated flyback regulator topology designed for step-up wide input voltage applications
• Built-in shutdown pin enables active low power consumption control
• Fixed 3.3V output configuration simplifies circuit design

Voltage Regulators - DC DC Switching Regulators Applications

• Wide input voltage step-up converter circuits
• Battery-powered systems requiring efficient voltage regulation
• Industrial control modules with high input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the manufacturer origin as National Semiconductor or Texas Instruments when sourcing. Confirm the suffix indicates the fixed 3.3V output variant. Ensure the package type matches the TO-220 specification if through-hole mounting is required. Cross-reference part numbers like LM2586T-3.3/NOPB for equivalent specifications from TI.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a fixed 3.3V output from inputs up to 40V. It is suitable where a 3A switch current capability is necessary. Consider the TO-220 package for thermal performance in higher power scenarios. Verify compatibility with external flyback transformer requirements for the specific topology.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2586 family of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2587 and LM2588 series but differs in current rating and specific output configurations. The LM2586T-ADJ variant offers adjustable output instead of fixed voltage.

Voltage Regulators - DC DC Switching Regulators FAQ

What is the primary function of the LM2586T-3.3?

It functions as a 3A flyback regulator capable of stepping up input voltages from 4V to 40V to a fixed 3.3V output.

Does the LM2586T-3.3 support power saving modes?

Yes, it includes a shutdown feature that allows the device to enter a low-power state when not in use.