LM2676SD-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676SD-12/NOPB is a SIMPLE SWITCHER® step-down voltage regulator from Texas Instruments. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output at up to 3A. The device integrates a 55V rated power switch, enabling the use of small external components. It features a typical switching frequency of 260kHz, allowing for compact inductor selection. The regulator includes thermal shutdown and current limit protection. It is housed in a 14-pin VSON package (6mm x 5mm) suitable for surface-mount applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated high-voltage power switch eliminates the need for external boost diodes or clamping circuits.
• Fixed 260kHz switching frequency reduces required passive component size.
• Internal compensation simplifies design by minimizing external component count.
• Built-in thermal shutdown protects against overheating under fault conditions.

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 24V or 48V bus architectures

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the suffix 'NOPB' confirms lead-free and RoHS compliance as per Texas Instruments specifications. Ensure the package marking matches the 14-pin VSON configuration. Cross-reference the manufacturer part number with official TI documentation to confirm availability status and revision history before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 12V output is required from an 8V to 40V input source. It is appropriate for designs prioritizing low external component count and moderate efficiency over synchronous rectification. Consider the thermal performance of the VSON package relative to the expected load current and ambient temperature constraints.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2676 family of non-synchronous buck regulators. It shares functional similarities with the LM2676S and LM2676T variants but differs in packaging. The SD variant utilizes a compact VSON footprint, distinguishing it from the larger TO-263 or TO-220 packages used in other series members.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct pin-compatible alternatives within the same family include LM2676SX-12/NOPB (TO-263 package) and LM2676S-12/NOPB (TO-263 package). Verify thermal dissipation requirements when substituting between package types, as heat transfer characteristics differ significantly between VSON and DPAK/TO-263 forms.