LM2670S-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2670S-ADJ/NOPB is a high-efficiency 3A step-down voltage regulator from Texas Instruments' SIMPLE SWITCHER family. It operates with an input voltage range of 8V to 40V and provides an adjustable output voltage from 1.23V to 37V. The device integrates a 3A switch and features a fixed switching frequency of 260kHz. It utilizes current mode control for rapid transient response and includes comprehensive protection mechanisms such as thermal shutdown, cycle-by-cycle current limiting, and undervoltage lockout. The component is housed in a TO-263-7 (D2PAK) surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a 3A power switch for compact solution design
• Utilizes current mode control architecture for fast transient response
• Includes built-in thermal shutdown and current limit protection
• Supports external frequency synchronization

Voltage Regulators - DC DC Switching Regulators Applications

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

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the exact suffix against the manufacturer's official datasheet to confirm pinout and electrical specifications. Ensure the TO-263-7 package matches your PCB footprint requirements. Confirm that the operating temperature range meets your specific environmental conditions before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a robust 3A buck converter is needed with minimal external components. It is suitable for designs prioritizing efficiency and simplicity over ultra-low quiescent current. Consider the 260kHz switching frequency regarding EMI constraints and inductor size requirements compared to higher-frequency alternatives.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM267x series of SIMPLE SWITCHER regulators, which are known for their ease of use and high efficiency. The 'S' indicates the TO-263-7 package, while 'ADJ' denotes the adjustable output version. The 'NOPB' suffix signifies lead-free construction and compliance with RoHS standards.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements within the same family include LM2670SX-ADJ/NOPB and LM2670SD-ADJ/NOPB, though package differences exist. For equivalent performance in different packages, consider LM2673S-ADJ/NOPB or LM2677S-ADJ/NOPB, ensuring current and package compatibility.