LM3668SD-3.3/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3668SD-3.3/NOPB is a synchronous buck-boost DC-DC converter from Texas Instruments, optimized for powering low-voltage circuits from Li-ion batteries and input rails between 2.5 V and 5.5 V. It features a fixed 3.3 V output with a maximum output current of 1 A. The device operates within an extended temperature range of -40°C to +85°C and utilizes a compact 12-WSON package.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Synchronous buck-boost topology supporting single inductor designs
• Dual-mode operation for high efficiency across load ranges
• Integrated shutdown capability for power management

Voltage Regulators - DC DC Switching Regulators Applications

• Portable consumer electronics powered by single-cell lithium batteries
• Low voltage circuit power supplies requiring step-up and step-down regulation
• Battery-operated devices needing efficient power conversion from varying input voltages

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix and manufacturer details against official datasheets before procurement. Confirm availability status as distribution channels may list obsolete or restricted items. Ensure compatibility with your design requirements regarding package type and electrical specifications prior to ordering.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a fixed 3.3 V output is required from a variable input source ranging from 2.5 V to 5.5 V. It is suitable for applications demanding a compact solution with integrated synchronous rectification. Consider alternative programmable variants if adjustable output voltage is necessary instead of a fixed configuration.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LM3668 series of power management ICs designed for mobile and portable applications. It shares architectural similarities with other members like the LM3668SD-2833/NOPB but differs in its fixed output voltage setting. The series focuses on high efficiency and small form factor integration for battery-powered systems.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate compatible buck-boost converters from the same family or similar manufacturers based on electrical parameters and pinout compatibility.