LM5009MMX/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM5009MMX/NOPB is a non-synchronous buck switching regulator manufactured by Texas Instruments. It features a wide input voltage range of 9.5V to 95V and delivers an output current of 150mA. The device utilizes a constant on-time (COT) control architecture with a fixed switching frequency of 600kHz. It provides an adjustable output voltage from 2.5V to 85V in a single-channel configuration. The component operates within a temperature range of -40°C to +125°C and is housed in an 8-pin VSSOP package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Constant on-time control architecture for simplified external component selection
• Wide input voltage capability supporting high-voltage power distribution
• Integrated bootstrap diode eliminates need for external high-voltage components
• Thermal shutdown protection ensures safe operation under overload conditions

Voltage Regulators - DC DC Switching Regulators Applications

• Industrial automation power supplies
• High-voltage battery-powered equipment
• Point-of-load regulation modules
• Automotive electronics systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix against official Texas Instruments documentation to confirm pinout and electrical characteristics, as variations may exist between tape-and-reel and cut-tape formats. Confirm RoHS compliance status through the manufacturer's product data sheet. Check for obsolescence notices or last-time-buy notifications prior to finalizing procurement plans to ensure long-term supply availability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when designing circuits requiring a simple, cost-effective step-down solution for inputs exceeding standard low-voltage regulators. The fixed 600kHz frequency allows for smaller passive components compared to lower-frequency alternatives. Ensure the application load does not exceed the 150mA continuous output limit. Consider thermal management requirements given the small VSSOP-8 package footprint and lack of synchronous rectification.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM5009 family of high-voltage buck converters designed for robust performance in demanding environments. It serves as a non-synchronous alternative to synchronous variants like the LM5017, offering simpler drive requirements at the cost of slightly lower efficiency. The MMX variant specifically denotes the tape-and-reel packaging format suitable for automated surface-mount assembly processes.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.