LM2586S-12

Voltage Regulators - DC DC Switching Regulators Overview

The LM2586S-12/NOPB is a SIMPLE SWITCHER power converter from Texas Instruments, functioning as a step-up or flyback regulator. It operates with an input voltage range of 4 V to 40 V and delivers up to 3 A output current. The device features a fixed 12 V output and supports switching frequencies between 100 kHz and 200 kHz. It utilizes current-mode control for fast transient response and includes internal frequency compensation. The component is housed in a TO-263 package and operates within a temperature range of -40 °C to +125 °C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3-A switch with current-mode control architecture
• Supports both boost and flyback topologies for flexible design
• Includes internal frequency compensation for simplified external component requirements
• Features thermal shutdown protection for enhanced reliability

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power systems requiring step-up conversion
• Battery-powered applications needing voltage regulation
• General-purpose DC/DC conversion modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix (e.g., NOPB) against the datasheet to confirm lead-free status and RoHS compliance. Ensure the TO-263 package variant matches the required PCB footprint. Confirm that the fixed 12 V output aligns with the target circuit requirements before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12 V output is required from a wide input range. Consider the 3-A current limit and TO-263 thermal performance for the application. Compare against adjustable variants if variable output is needed. Verify operating temperature range suitability for the environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM258x series of SIMPLE SWITCHER regulators. It shares architectural similarities with the LM2576 and LM2596 families but offers integrated switching capabilities in a compact surface-mount package. The series is designed for high-efficiency DC/DC conversion with minimal external components.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2586S-12/NOPB serves as a direct replacement for older National Semiconductor versions. Check pinout compatibility with legacy designs. Verify thermal characteristics match the original component's dissipation requirements.