LM3676SDX-ADJ

Voltage Regulators - DC DC Switching Regulators Overview

The LM3676SDX-ADJ is a step-down DC-DC converter from Texas Instruments designed for low voltage circuits. It features a fixed 2 MHz switching frequency and supports an input voltage up to 5.5 V. The device delivers a maximum load capability of 600 mA with adjustable output voltage starting from 1.1 V. It operates within a temperature range of -30°C to +85°C and utilizes an 8-WSON package topology.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a high-frequency buck converter optimized for single-cell Li-Ion battery applications
• Provides adjustable output voltage regulation with a 600 mA maximum load current capacity
• Utilizes a compact WSON-8 surface-mount package for space-constrained designs

Voltage Regulators - DC DC Switching Regulators Applications

• Powering low voltage circuits from single Li-Ion cell batteries
• Input voltage rails requiring step-down conversion up to 5.5 V
• Portable electronic devices utilizing simple switcher topologies

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component status as the LM3676SDX-ADJ is listed as obsolete and no longer manufactured by Texas Instruments. Confirm availability of parametric equivalents such as the LM3676SD-ADJ/NOPB or LM3676SD series before procurement. Ensure that the specific suffix and package details match the required design specifications for replacement components.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications requiring a 2 MHz switching frequency to minimize external inductor size. Consider the 600 mA output limit when designing for higher power loads. Evaluate the 5.5 V maximum input voltage constraint against the source supply. The adjustable output feature allows flexibility for various logic levels starting from 1.1 V.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3676 series of simple switchers. It is distinct from the LM2679 and LM2670 series which offer higher currents and different input ranges. The LM3676 focuses on efficiency and small footprint for single-cell battery systems rather than high-power industrial applications.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Public confirmed substitutes include the LM3676SD-ADJ/NOPB and the general LM3676SD series. These are identified as parametric equivalents for the obsolete LM3676SDX-ADJ.