LM3676SDX-1.8

Voltage Regulators - DC DC Switching Regulators Overview

The LM3676SDX-1.8 is a synchronous step-down DC-DC converter manufactured by Texas Instruments. It provides a fixed positive output voltage of 1.8V with a maximum continuous output current of 600mA. The device operates with an internal switching frequency of 2MHz, enabling the use of small external components. It supports input voltages ranging from 2.9V to 5.5V and functions within an operating temperature range of -30°C to +85°C. The component is housed in an 8-WFDFN package with an exposed pad for thermal dissipation.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates a synchronous rectifier for improved efficiency in step-down conversion applications.
• Utilizes mode control technology to optimize performance across varying load conditions.
• Designed for compact designs through high-frequency operation reducing passive component size.

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered electronic devices
• Embedded systems requiring stable low-voltage regulation
• Mobile communication equipment power stages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific ordering suffix matches the required package and temperature grade. Confirm that the 'SDX' designation corresponds to the correct reel or tape quantity specifications provided by the distributor. Ensure compatibility with the target PCB footprint for the 8-WFDFN exposed pad configuration before finalizing procurement orders.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 1.8V output is required with moderate current demands up to 600mA. Consider the 2MHz switching frequency for minimizing inductor size compared to lower-frequency alternatives. Evaluate the input voltage range against the system's power source to ensure it remains within the 2.9V to 5.5V operational limits for stable regulation.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3676 series of switching voltage regulators from Texas Instruments. It is functionally similar to the LM3674MFX-1.8/NOPB but differs in packaging and specific pinout configurations. The series is designed for space-constrained applications requiring efficient power management from single-cell lithium-ion sources.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM3676SD-1.8/NOPB is a confirmed substitute part number offering identical electrical characteristics. Verify pin-to-pin compatibility and thermal requirements when transitioning between these specific package variants within the same product line.