LM2674LDX-5.0/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2674LDX-5.0/NOPB is a Texas Instruments SIMPLE SWITCHER power converter designed as a high-efficiency step-down (buck) switching regulator. It integrates all active functions required for buck conversion, delivering a fixed 5 V output at a maximum load current of 500 mA. The device operates with an input voltage range up to 40 V and features a switching frequency of 275 kHz. Packaged in a compact 16-WSON format, it supports operation across an extended temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates all active functions for a complete step-down switching regulator solution
• Provides high efficiency performance suitable for battery-powered applications
• Includes internal compensation and frequency compensation for stable operation

Voltage Regulators - DC DC Switching Regulators Applications

• Battery-powered portable equipment
• Point-of-load regulation modules
• General-purpose 5 V distribution systems

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'NOPB' confirms lead-free status and RoHS compliance as per Texas Instruments documentation. Confirm the 'LDX' designation corresponds to the 16-WSON package variant rather than other LM2674 package options. Ensure the '-5.0' indicates the fixed 5 V output version. Cross-reference the manufacturer part number with official TI databases to confirm current production status and availability.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5 V output is required from an input voltage up to 40 V with moderate load currents around 500 mA. The choice depends on the need for a compact 16-WSON footprint compared to larger through-hole or SOIC packages. Consider the 275 kHz switching frequency for balancing component size and efficiency. Verify thermal requirements for the specific PCB layout and ambient conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2674 family of SIMPLE SWITCHER regulators, which are known for simplifying power supply design by integrating the controller, switch, and diode. The LM2674 series offers various output voltages and package options. The LM2674LDX variant specifically utilizes a small outline no-lead package to save board space while maintaining the core performance characteristics of the series.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible replacements within the same family include LM2674SX-5.0/NOPB (TO-263 package) or LM2674N-5.0/NOPB (PDIP package). For surface-mount alternatives with similar electrical characteristics but different footprints, consider LM22674 variants, though pinouts and thermal properties may differ.