LTC3826EUH#PBF

DC DC Switching Controllers Overview

The LTC3826EUH#PBF is a dual-phase synchronous step-down controller from Analog Devices, designed for high-efficiency power conversion. It operates within an input voltage range of 4V to 36V and supports output voltages from 0.8V to 10V. The device features a constant frequency current-mode architecture with a programmable switching frequency between 140kHz and 650kHz. It achieves ultra-low quiescent current of 30μA in single-channel operation and 4μA during shutdown. The controller utilizes OPTI-LOOP compensation for optimized transient response across varying output capacitance and ESR values.

DC DC Switching Controllers Feature Summary

• Dual-phase architecture with out-of-phase operation to minimize input capacitor ESR losses and noise
• OPTI-LOOP compensation technology allows optimization of transient response over wide output capacitance ranges
• Independent TRACK/SS pins enable synchronized soft-start or tracking of multiple outputs
• Flexible light-load operation modes including Burst Mode, pulse skipping, and continuous inductor current

DC DC Switching Controllers Applications

• Automotive systems requiring wide input voltage tolerance
• Battery-powered digital devices needing extended operational life
• Distributed DC power supply architectures

DC DC Switching Controllers Procurement Notes

Verify the component matches the specific QFN-32 package and lead-free RoHS compliance status before integration. Confirm that the 30μA quiescent current specification applies to the intended single-channel active configuration. Ensure design inputs align with the 4V to 36V input range constraints. Validate thermal performance expectations against the 5mm x 5mm package dimensions under maximum load conditions.

DC DC Switching Controllers Selection Notes

Select this controller when minimizing input noise and capacitor count is critical due to its dual-phase interleaved operation. Choose this part for applications requiring precise output regulation with ±1% accuracy and fast transient recovery via OPTI-LOOP. Consider this device for battery-operated systems where the low 30μA operating IQ significantly extends runtime compared to standard controllers.

DC DC Switching Controllers Part Context

This component belongs to the LTC3826 family of synchronous buck controllers. It is functionally related to variants such as the LTC3826IG-1#PBF, which offers a different SSOP-28 package option. The EUH suffix denotes the specific 32-pin QFN plastic package form factor used in this designation.

DC DC Switching Controllers Replacement Considerations

LTC3826IG-1#PBF provides equivalent electrical functionality in a 28-pin SSOP package.