LM3668SDX-2833/NOPB

Voltage Regulators - DC DC Switching Regulators Overview

The LM3668SDX-2833/NOPB is a synchronous buck-boost DC/DC converter from Texas Instruments, housed in a 12-WSON package. It operates with an input voltage range of 2.5 V to 5.5 V and provides a programmable output voltage of 2.8 V or 3.3 V at up to 1 A. The device features a fixed switching frequency of 2.2 MHz and draws 45 uA in shutdown mode. It supports positive output configuration and functions within a temperature range of -40°C to +85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Dual-mode operation for high efficiency across varying load conditions
• Single inductor topology simplifies design and reduces component count
• Integrated synchronous rectification improves power conversion efficiency
• Programmable output voltage allows flexibility for specific system requirements

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered devices requiring stable voltage regulation
• Systems utilizing single-cell lithium-ion or lithium-polymer batteries
• Applications needing efficient power management in space-constrained designs

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the current lifecycle status before procurement, as this component may be marked as not recommended for new designs. Confirm availability through authorized distributors, noting that supply might be restricted or limited. Ensure the ordering suffix matches the required tape and reel specifications for automated assembly processes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this part when a compact solution is needed for converting single-cell battery voltages to regulated levels. The 2.2 MHz frequency enables smaller external inductors compared to lower-frequency alternatives. Consider the 12-WSON package size for tight PCB real estate constraints. Verify that the 1 A output current meets the peak load requirements of the target application.

Voltage Regulators - DC DC Switching Regulators Part Context

This component belongs to the LM3668 family of power management ICs designed for mobile applications. It shares architectural similarities with other TI buck-boost converters but offers specific pinout and performance characteristics tailored for portable electronics. The family focuses on balancing efficiency, size, and cost for consumer devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitutes include the TPS63802DLAT. Evaluate alternative parts based on pin compatibility, electrical specifications, and package dimensions to ensure seamless integration without redesigning the surrounding circuitry.