LM2586SX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM2586SX-ADJ is a SIMPLE SWITCHER step-up regulator from Texas Instruments, designed for wide input voltage ranges. It operates with an input voltage range of 4V to 40V and supports adjustable output voltages up to 60V. The device integrates a 3A switch and utilizes current-mode control for fast transient response. It features a fixed switching frequency of 100kHz, enabling the use of compact external components. The component is housed in a TO-263-8 (D2PAK) surface-mount package and is rated for operation across a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-current internal switch capable of delivering up to 3A output.
• Supports boost, flyback, and forward converter topologies for versatile circuit design.
• Utilizes current-mode control architecture to ensure rapid transient response and inherent cycle-by-cycle current limiting.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems requiring step-up conversion
• Battery-powered applications needing voltage regulation from lower source levels
• Inverting negative outputs from positive supply rails

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' against the manufacturer's official datasheet to confirm the exact pinout and thermal pad configuration associated with the TO-263-8 variant. Ensure that the ordering information matches the intended lead frame material and package dimensions, as variations within the LM2586 family may exist between different manufacturers or legacy revisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust, high-current step-up solution is required for industrial or automotive environments. The wide input voltage range accommodates various battery chemistries and unregulated sources. Consider the thermal performance of the TO-263 package relative to the expected load current and ambient temperature conditions to determine if additional heatsinking is necessary for sustained operation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2586 series of SIMPLE SWITCHER regulators, which are known for their ease of use and minimal external component count. The series includes fixed-output variants and adjustable versions like the ADJ model. The 'SX' designation typically indicates a specific surface-mount package variation within the broader LM2586 product line, distinguishing it from through-hole or other SMD options.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements include the LM2586S-ADJ/NOPB and LM2586T-ADJ/NOPB, depending on the required package type (TO-263 vs. TO-220). Verify compatibility with existing PCB footprints and thermal management strategies when substituting between package styles within the same functional family.