LM2586T-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2586T-3.3/NOPB is a SIMPLE SWITCHER step-up/flyback regulator from Texas Instruments, designed for wide input voltage ranges of 4V to 40V. It delivers a fixed 3.3V output with a maximum switch current of 3A. The device operates at a switching frequency between 100kHz and 200kHz and supports an output voltage up to 60V. It utilizes current-mode control for rapid transient response and incorporates internal frequency compensation. The component is housed in a TO-220-7 ZIP package, rated for operation from -40°C to +125°C, and complies with RoHS standards.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a power switch capable of handling high currents for efficient step-up and flyback conversion topologies.
• Features current-mode control architecture that simplifies external compensation and ensures stable loop performance.
• Includes comprehensive protection mechanisms such as thermal shutdown and cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring step-up conversion
• Battery-powered devices needing extended runtime via voltage boosting
• Inverting power supplies generating negative voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free and RoHS compliance status against the manufacturer's latest documentation. Ensure the ordering part number matches the required TO-220-7 through-hole package variant. Confirm availability of the fixed 3.3V output version specifically, as the LM2586 series includes adjustable and other fixed voltage options. Cross-reference the datasheet revision date to ensure all electrical characteristics align with current manufacturing specifications.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust step-up or flyback solution is needed with a wide input range up to 40V. The fixed 3.3V output eliminates the need for external feedback resistors, simplifying design. Consider the TO-220-7 package for applications requiring effective heat dissipation without additional heatsinking solutions. Verify that the load current requirements do not exceed the 3A switch limit under worst-case operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the SIMPLE SWITCHER family of regulators, known for integrating power switches and control circuitry into a single monolithic IC. The LM2586 series specifically targets non-isolated DC-DC converter applications. The 'T' suffix indicates the TO-220-7 ZIP package, while '3.3' denotes the fixed output voltage. This model serves as a direct replacement for older leaded versions, adhering to modern environmental directives.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2586T-3.3/NOPB is functionally equivalent to the LM2586T-3.3 (leaded version). Designers should verify pinout compatibility and thermal performance characteristics when substituting between leaded and lead-free packages. No functional changes are introduced by the NOPB suffix regarding electrical parameters.