LTC3126EFE#PBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3126EFE#PBF is a high-efficiency synchronous buck converter manufactured by Analog Devices Inc. It features an internal no-loss PowerPath that supports seamless operation from two separate input power sources. The device operates with an input voltage range of 2.4 V to 42 V and provides a maximum output current of 2.5 A. It utilizes a QFN-28 package for surface mount installation. The switching frequency is adjustable between 200 kHz and 2.2 MHz, allowing for optimization of external component size and efficiency. The part is rated for operation over an extended temperature range from -40°C to +125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Internal no-loss PowerPath enables seamless transition between dual independent input sources without interruption.
• Synchronous buck topology ensures high conversion efficiency across the operating load range.
• Wide input voltage capability supports diverse power source configurations including automotive and battery inputs.

Voltage Regulators - DC DC Switching Regulators Applications

• Power supplies derived from wall adapters and lead-acid backup batteries
• Systems powered by automotive electrical systems and auxiliary batteries
• Photovoltaic-powered USB supply circuits

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify availability status as distribution channels may indicate limited stock or restricted sales regions. Confirm RoHS compliance details through official manufacturer documentation prior to integration. Ensure the specific suffix matches design requirements for temperature grade and packaging format. Cross-reference ordering information with authorized distributors to validate current production status and lead times.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when dual-input redundancy and seamless switchover are required in space-constrained designs. The wide input range accommodates various source voltages up to 42 V. Consider the adjustable switching frequency to balance electromagnetic interference performance against passive component footprint. Verify thermal management capabilities align with the expected ambient operating conditions within the specified temperature range.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3126 series of power management integrated circuits designed for applications requiring robust power delivery from multiple sources. The series emphasizes efficiency and reliability in environments where input source availability may vary. It serves as a critical power regulation stage in portable and industrial equipment.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Consult official Analog Devices substitution guides for verified alternative part numbers. Ensure any replacement maintains compatibility with the dual-input PowerPath architecture and meets the same electrical specifications for input voltage, output current, and package dimensions.