LM3676SDX-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3676SDX-3.3/NOPB is a fixed-output step-down DC-DC converter manufactured by Texas Instruments. It operates with a switching frequency of 2 MHz and delivers an output current of 600 mA at a nominal voltage of 3.3 V. The device accepts an input voltage range from 2.9 V to 5.5 V. It utilizes a WSON-8 package and functions within an operating temperature range of -40°C to +85°C. The regulator employs voltage-mode control and features synchronous rectification for improved efficiency in portable applications.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates synchronous rectification for high efficiency
• Utilizes a compact WSON-8 package design
• Supports fixed 3.3V output configuration

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices
• Cellular phones
• Personal digital assistants

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'X' indicates tape-and-reel packaging when ordering. Confirm the 'NOPB' designation ensures lead-free compliance and RoHS adherence as per Texas Instruments standards. Ensure the WSON-8 footprint matches your PCB layout requirements before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for designs requiring a fixed 3.3V rail from a single-cell lithium-ion source. The 2MHz frequency allows for smaller external inductors compared to lower-frequency alternatives. Verify that the load current does not exceed the 600mA limit and that the input voltage remains within the 2.9V to 5.5V operational window.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3676 family of low-noise, high-efficiency step-down converters. It is designed specifically for space-constrained mobile electronics. The device integrates power switches and control logic into a small form factor, reducing the overall solution size for portable systems requiring stable voltage regulation.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

The LM3676SD-3.3/NOPB is the tray-packaged equivalent of this reel-part. Other variants in the series include different fixed output voltages such as 1.8V or adjustable versions. Cross-reference pinouts and thermal characteristics when substituting with other buck regulators.