LM2586SX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2586SX-3.3/NOPB is a SIMPLE SWITCHER step-up wide input voltage flyback regulator from Texas Instruments, operating within a 4V to 40V input range. It delivers up to 3A of output current with a fixed 3.3V output voltage. The device utilizes a 100kHz to 200kHz switching frequency and supports boost, flyback, and forward converter topologies. Packaged in a TO-263 (DDPAK-7) surface-mount case, it functions as a positive single-output switching regulator IC designed for efficient power conversion across an industrial temperature range.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic controller supporting boost, flyback, and forward converter topologies
• Fixed 3.3V output configuration for simplified design implementation
• Wide input voltage capability accommodating 4V to 40V supply ranges
• Current-mode control architecture for rapid transient response

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power systems requiring step-up conversion
• Battery-powered equipment utilizing flyback architectures
• General-purpose DC-to-DC conversion modules
• Industrial control power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' against the manufacturer's official datasheet to confirm package dimensions and pinout compatibility. Ensure the 'NOPB' designation aligns with current RoHS compliance requirements for your target market. Cross-reference the exact part number with authorized distributors to confirm availability status and lead times before finalizing procurement plans.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required from a variable or higher input voltage source. The TO-263 package offers thermal advantages over smaller footprints for high-current applications. Consider the 100kHz to 200kHz switching frequency for balancing efficiency and external component size. Verify that the 3A current rating meets the peak load demands of the target circuit.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2586 series of SIMPLE SWITCHER regulators, which are known for their ease of use and robust performance in switching power applications. The series includes adjustable and fixed voltage variants, offering designers flexibility in creating efficient power solutions. The LM2586 family is widely recognized for its integrated protection features and minimal external component count.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM2586SX-3.3/NOPB may be replaced by other LM2586 series variants with compatible packages, such as the LM2586S-3.3/NOPB, provided the pinout and thermal characteristics match. Always verify electrical specifications and physical dimensions before substitution.