LM2587S-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2587S-3.3/NOPB is a SIMPLE SWITCHER step-up/flyback regulator from Texas Instruments, housed in a TO-263 package. It provides a fixed 3.3V output with a maximum current of 5A. The device operates within an input voltage range of 4V to 40V and supports switching frequencies up to 100kHz. It features integrated feedback compensation, a 150mA driver, and thermal shutdown protection. Operating temperatures span from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated feedback compensation eliminates the need for external frequency compensation components.
• Includes internal 150mA driver capable of supporting high peak currents during startup.
• Features thermal shutdown protection to safeguard the device under overload conditions.

Voltage Regulators - DC DC Switching Regulators Applications

• Distributed power supply systems
• Battery-powered applications requiring step-up conversion
• Post-regulation circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including the /NOPB suffix to ensure lead-free compliance and specific packaging configuration. Confirm that the required output voltage matches the fixed 3.3V specification, as other variants exist within the LM2587 family. Cross-reference the datasheet for exact thermal performance requirements based on your specific PCB layout and ambient temperature conditions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3V output is required from an input source ranging between 4V and 40V. It is suitable for designs needing up to 5A of continuous output current in a surface-mount TO-263 package. Consider the 100kHz switching frequency for balancing component size and efficiency against noise sensitivity in the target application environment.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM2587 series of SIMPLE SWITCHER regulators, which are designed for ease of use with minimal external components. The 'S' indicates the TO-263 surface-mount package, while '/NOPB' denotes a non-halogenated, lead-free product. It serves as a robust solution for converting higher or lower voltages efficiently in compact power management designs.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2587S-3.3 is the equivalent non-RoHS version. LM2587SX-3.3/NOPB may be available depending on manufacturer updates. Verify pinout compatibility and thermal characteristics before substituting with other step-up regulators.