LM2676SD-5.0

Voltage Regulators - DC DC Switching Regulators Overview

The LM2676SD-5.0/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 a fixed 5V output. The device features a switching frequency of 260kHz, a maximum output current of 3A, and a typical quiescent current of 4.2mA. It utilizes a 14-VSON package and supports an operating temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated power switch eliminates the need for external boost diodes
• Fixed internal switching frequency simplifies external component selection
• Internal compensation reduces required external component count
• Thermal shutdown protects against excessive junction temperatures

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
• Telecommunications infrastructure power supplies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number includes the /NOPB suffix to ensure compliance with RoHS standards and lead-free manufacturing processes. Confirm the specific package variant matches the design requirements, as the SD suffix denotes the VSON-14 package. Cross-reference the manufacturer datasheet for the latest environmental declarations and handling instructions before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 5V output is required from an 8V to 40V input source. Ensure the load current does not exceed 3A continuous operation. Consider the 260kHz switching frequency for inductor size trade-offs. Verify that the thermal performance of the VSON-14 package meets the application's heat dissipation needs under maximum load conditions.

Voltage Regulators - DC DC Switching Regulators Part Context

This regulator belongs to the SIMPLE SWITCHER family, designed for high efficiency and minimal external components. It serves as a direct replacement for older discrete solutions or legacy regulators in compact designs. The device integrates the controller, power switch, and necessary protection circuits into a single monolithic IC.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2676SD-5.0/NOPB is the RoHS-compliant version of the LM2676SD-5.0. For pin-compatible alternatives, consider the LM2678 series for higher current capabilities or the LM2673 series for lower cost applications. Always verify electrical specifications and thermal characteristics before substituting.