LM2671MX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2671MX-3.3/NOPB is a high-efficiency, monolithic integrated circuit step-down voltage regulator manufactured by Texas Instruments. It operates as a buck converter with a fixed 3.3 V output and a maximum output current of 500 mA. The device integrates a 0.5 A power switch and functions at a switching frequency of 260 kHz. It accepts an input voltage range from 4.5 V to 40 V. The component is housed in an 8-pin MSOP package and supports operation within a temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 0.5 A power switch for compact design
• Fixed 3.3 V output option eliminates external feedback resistors
• High efficiency across wide input voltage ranges
• Internal frequency compensation simplifies external component selection

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient step-down conversion
• General-purpose DC/DC power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'MX' against official datasheets to confirm the MSOP-8 package variant. Ensure the 'NOPB' designation aligns with current RoHS compliance requirements. Cross-reference the manufacturer part number directly with the original equipment manufacturer's documentation to validate availability and exact electrical specifications before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required without external resistor networks. It is suitable for applications needing moderate current up to 500 mA with high efficiency. Consider the 260 kHz switching frequency for inductor size trade-offs. Verify that the input voltage does not exceed the 40 V maximum rating under all operating conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2671 series of SIMPLE SWITCHER power converters. The series includes adjustable and fixed voltage variants. The MX suffix typically denotes the MSOP-8 package, distinguishing it from other package options like SOIC-8 or TO-263 available in the same family.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible alternatives within the LM2671 family, such as the LM2671M-3.3/NOPB in an SOIC-8 package if form factor allows. Verify thermal performance differences between package types.