LM3676SD-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM3676SD-ADJ is a synchronous step-down DC-DC converter manufactured by Texas Instruments. It features a fixed switching frequency of 2MHz and supports an input voltage range from 2.9V to 5.5V. The device provides a maximum output current of 600mA with an adjustable output voltage. It operates within a temperature range of -30°C to 85°C (TA) and utilizes an 8-pin WSON surface-mount package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification for improved efficiency
• Fixed 2MHz switching frequency
• Adjustable output voltage capability
• Compact 8WSON package design

Voltage Regulators - DC DC Switching Regulators Applications

• Low voltage circuit powering from single Li-Ion cells
• Portable electronic devices requiring efficient buck conversion
• Battery-powered systems with input rails up to 5.5V

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix NOPB when ordering, as it indicates lead-free status. Confirm the package type is 8WSON. Check part status as some listings indicate obsolete status. Ensure compatibility with your PCB footprint and thermal requirements. Validate supplier authenticity through authorized channels.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Choose this component for applications requiring a compact solution with 600mA load capability. The 2MHz frequency allows for smaller external inductors and capacitors compared to lower-frequency alternatives. Ensure the input voltage stays within the 2.9V to 5.5V range. Consider the thermal performance in the 8WSON package for your specific power dissipation needs.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3676 family of step-down converters. It is designed for portable applications where space and efficiency are critical. The adjustable output version offers flexibility in setting the target voltage. It serves as a replacement for older non-synchronous regulators in similar voltage ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check for direct pin-compatible substitutes within the same manufacturer's portfolio. Verify if newer revisions have replaced the NOPB designation. Ensure any alternative maintains the 2MHz frequency and 600mA current rating. Confirm package dimensions match the existing 8WSON footprint.