LM3679UR-1.8/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3679UR-1.8/NOPB is a synchronous buck switching voltage regulator from Texas Instruments, housed in a 5-XFBGA package. It provides a fixed positive output of 1.8V with a maximum current capability of 350mA. The device operates at a high switching frequency of 3MHz, enabling the use of small external components. It features an operating temperature range of -30°C to 85°C and includes shutdown functionality for power management.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous rectification for improved efficiency
• High-frequency operation reduces passive component size
• Integrated shutdown control for power optimization

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronic devices requiring efficient step-down conversion
• Battery-powered systems needing low quiescent current
• Embedded applications with space-constrained PCB layouts

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify component authenticity through authorized distributors. Confirm package integrity and pin alignment upon receipt. Check datasheet revisions for any updates to electrical characteristics or thermal recommendations. Ensure storage conditions comply with moisture sensitivity levels specified by the manufacturer.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this regulator when a fixed 1.8V output is required with moderate current demands up to 350mA. The 3MHz switching frequency suits designs prioritizing small footprint over ultra-low noise. Consider thermal performance in dense layouts due to the small package size.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3679 series of DC-DC converters designed for mobile and portable applications. It offers a compact solution compared to lower-frequency alternatives, balancing efficiency and size constraints typical in consumer electronics and IoT devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

No direct public substitute part numbers are confirmed in available documentation. Evaluate alternative regulators based on output voltage, current rating, and package compatibility if discontinuance occurs.