LM2673SX-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2673SX-ADJ/NOPB is a SIMPLE SWITCHER step-down voltage regulator manufactured by Texas Instruments. It operates with an input voltage range of 8V to 40V and provides an adjustable output voltage from 1.2V to 37V. The device supports a maximum output current of 3A with a fixed switching frequency of 260kHz. It utilizes a VSON-14 surface-mount package and functions within a junction temperature range of -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated monolithic buck converter topology for efficient step-down regulation
• Internal power switch eliminates the need for external boost diodes
• Adjustable output voltage capability via external resistor network
• Built-in thermal shutdown and current limit protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient voltage conversion
• Industrial control systems operating from 12V or 24V buses
• Telecommunications infrastructure power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SX' against official Texas Instruments documentation to confirm the VSON-14 package variant. Ensure the 'NOPB' designation confirms lead-free and RoHS compliance status as per the latest datasheet revision. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and traceability before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact surface-mount solution is required for 3A buck applications. The VSON-14 package offers a smaller footprint compared to TO-220 variants while maintaining similar electrical performance. Consider the 260kHz switching frequency for balancing component size and efficiency requirements in space-constrained designs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2673 SIMPLE SWITCHER family, which integrates high-speed MOSFETs into a single monolithic IC. The series is designed to simplify power supply design by reducing the number of external components. The LM2673SX variant specifically adapts this technology for surface-mount assembly using the VSON-14 package format.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2673SDX-ADJ/NOPB: Same family member with identical electrical specifications but packaged in VSON-14. Verify pinout compatibility and thermal characteristics between the SX and SD suffixes before substitution.