LM2677SD-12/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM2677SD-12/NOPB is a high-efficiency 5A step-down voltage regulator from Texas Instruments, part of the SIMPLE SWITCHER family. It operates with an input voltage range of 8V to 40V and provides a fixed 12V output. The device features a switching frequency of 260kHz and supports output currents up to 5A. It is housed in a VSON-14 package suitable for surface-mount installation. The component functions within a temperature range of -40°C to +125°C and includes built-in thermal shutdown and current limit protection.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrated synchronous rectification for enhanced efficiency
• Fixed 12V output configuration
• Built-in thermal and current protection mechanisms

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for embedded systems
• Industrial control power supplies
• Telecommunications equipment power distribution

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'SD' against official datasheets to confirm the VSON-14 package variant, as standard LM2677 models often use TO-263 or TO-220 packages. Ensure compatibility with the required 12V fixed output and 5A current rating for the target application. Confirm moisture sensitivity levels and reflow soldering profiles prior to assembly.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact surface-mount solution is required for 5A buck conversion. The VSON-14 package offers a smaller footprint compared to traditional through-hole options. Consider the 260kHz switching frequency for balancing component size and efficiency. Verify that the 8V to 40V input range matches the system supply rails.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM2677 series of SIMPLE SWITCHER regulators, designed for high-efficiency DC-DC conversion. The 'SD' suffix typically denotes the VSON-14 package variant, distinguishing it from the S (TO-263) or T (TO-220) versions. The '-12' indicates a fixed 12V output, while '/NOPB' signifies lead-free and halogen-free compliance.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

LM2677S-12/NOPB

Voltage Regulators - DC DC Switching Regulators FAQ

What is the maximum output current for the LM2677SD-12/NOPB?

The device supports a maximum output current of 5A.

Does this regulator include internal synchronous rectification?

Yes, the LM2677 series features integrated synchronous rectifiers to improve efficiency.