LM2676S-ADJ/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676S-ADJ/NOPB is a SIMPLE SWITCHER® high-efficiency 3A step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 8V to 40V and provides an adjustable output voltage between 1.2V and 37V. The device integrates a 150mΩ power switch and features a fixed switching frequency of 260kHz. It utilizes a TO-263-7 (D2PAK-7) package for surface-mount installation. Key electrical parameters include a maximum output current of 3A, a quiescent current of 4.2mA, and an operating junction temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated 150mΩ power switch enables high efficiency and reduces external component count.
• Fixed 260kHz switching frequency allows the use of small inductors and capacitors.
• Adjustable output voltage range supports flexible design configurations.
• Internal thermal shutdown and current limit protection ensure robust operation.

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Battery-powered equipment requiring efficient step-down conversion
• Industrial control systems with wide input voltage ranges

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix NOPB indicates lead-free and RoHS compliance per Texas Instruments standards. Confirm the package designation S corresponds to the TO-263-7 form factor. Ensure the ADJ variant matches the required adjustable output specification rather than a fixed voltage option. Cross-reference the manufacturer part number with official TI documentation to validate authenticity and revision status before procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a 3A output current is required with an input voltage up to 40V. The adjustable output feature is suitable for designs needing specific voltage levels not available in fixed variants. Consider the TO-263-7 package for its thermal performance and board space requirements relative to smaller packages like the SD or SX series.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the LM267x family of SIMPLE SWITCHER regulators, which are designed for ease of use and high efficiency. The LM2676 specifically offers a 3A output capability, distinguishing it from the lower-current LM2674/2675 and higher-current LM2678 counterparts within the same product line.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2676SX-ADJ/NOPB: Same electrical specifications but in a TO-263-8 (D2PAK-7 with tab) package. LM2676SD-ADJ/NOPB: Same electrical specifications but in a compact 14-VSON package. Verify thermal management requirements when substituting between these package types.