LTC3823EUH#PBF

DC DC Switching Controllers Overview

The LTC3823EUH#PBF is a synchronous step-down switching regulator controller featuring true remote differential output sensing and voltage tracking capabilities. It operates with an input voltage range of 4.5 V to 36 V and supports output voltages from 600 mV to 27 V. The device utilizes a 1 MHz switching frequency and provides drive for external MOSFETs capable of handling up to 25 A. It functions within a temperature range of -40°C to +85°C and is housed in a 28-lead SSOP package.

DC DC Switching Controllers Feature Summary

• Integrates true remote differential output sensing to eliminate load regulation errors caused by trace resistance.
• Provides independent control over output voltage rise and fall times for precise sequencing and tracking.
• Supports phase-locking loop (PLL) synchronization to align multiple controllers without requiring current sense resistors.

DC DC Switching Controllers Applications

• High-power point-of-load conversion for processors and ASICs
• Telecommunications infrastructure power distribution
• Industrial equipment requiring precise multi-rail voltage sequencing

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #PBF indicates lead-free tin plating compliant with RoHS standards. Confirm the EUH package variant matches the required thermal and pinout specifications for the target PCB layout. Ensure compatibility with the intended external MOSFET gate drive requirements before finalizing procurement orders.

DC DC Switching Controllers Selection Notes

Select this component when high accuracy is required due to its differential sensing feature, which compensates for board trace drops. The no-sense resistor topology reduces bill of materials cost and improves efficiency compared to traditional current-mode controllers. Verify that the 1 MHz frequency aligns with the desired passive component size constraints.

DC DC Switching Controllers Part Context

This part belongs to the LTC3823 family of fast, no-sense buck synchronous DC/DC controllers. It is designed for applications demanding high efficiency and precise voltage regulation without the power loss associated with external current sense resistors. The series emphasizes scalability through PLL synchronization features.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include other Analog Devices synchronous buck controllers with differential sensing, such as the LTC3823EGN#PBF, provided the package type change from SSOP to QFN does not impact mechanical fit or thermal performance.