LTC3883IUH#PBF

DC DC Switching Controllers Overview

The LTC3883IUH#PBF is a single-phase synchronous step-down DC/DC controller from Analog Devices, designed for high-efficiency power conversion. It operates with an input voltage range of 4.5V to 24V and supports switching frequencies between 250 kHz and 1 MHz. The device delivers up to 30A output current with adjustable output voltages ranging from 500 mV to 5.4 V. It features I²C and PMBus digital interfaces for system management and monitoring. Packaged in a 32-lead QFN (5x5 mm) with an exposed thermal pad, it functions within a junction temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Supports digital power system management via I²C and PMBus serial interfaces for precise control and monitoring.
• Integrates synchronous rectification drivers for high efficiency in single-phase buck applications.
• Includes clock synchronization capability to align with external timing sources or other phases.
• Provides comprehensive protection and control features including soft start, frequency control, and power good indication.

DC DC Switching Controllers Applications

• High-performance server and workstation power distribution networks
• Industrial equipment requiring regulated low-voltage power rails
• Telecommunications infrastructure power supplies
• Embedded systems utilizing FPGA or ASIC core voltage regulation

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout and functional compatibility. The #PBF designation indicates lead-free packaging compliant with RoHS standards. Confirm availability status as supply constraints may apply. Ensure the selected package matches the PCB footprint requirements for the 32-QFN form factor. Cross-reference datasheet revisions to validate electrical characteristics for the intended operating conditions.

DC DC Switching Controllers Selection Notes

Select this component when a single-phase solution with digital interface capabilities is required. It is suitable for applications needing output currents up to 30A with efficient synchronous rectification. Consider the 4.5V to 24V input range for compatibility with standard bus voltages. Evaluate the need for PMBus/I²C integration versus analog-only controllers. Ensure thermal design accommodates the QFN package's heat dissipation requirements for the target load conditions.

DC DC Switching Controllers Part Context

This part belongs to the PolyPhase® series of power management ICs from Analog Devices. It is functionally related to variants such as the LTC3883EUH-1#TRPBF and LTC3883IUH-1#WPBF, which share similar core architectures but differ in temperature grades, packaging formats, or shutdown functionality. The series targets advanced digital power applications requiring programmable parameters and system-level monitoring through standardized communication protocols.

DC DC Switching Controllers Replacement Considerations

Direct substitutes include LTC3883EUH#PBF for commercial temperature grade applications and LTC3883IUH-1#WPBF if shutdown functionality is required. Verify that alternative packages or suffixes match the specific thermal and environmental requirements of the design.

DC DC Switching Controllers FAQ

Does the LTC3883IUH#PBF support clock synchronization?

Yes, the device includes a clock synchronization feature to allow alignment with external timing signals or other controller phases.

What is the maximum output current capability of this controller?

The controller is designed to drive external MOSFETs capable of delivering up to 30A of output current.

Is the LTC3883IUH#PBF available in a tape and reel package?

No, the #PBF suffix typically denotes tube packaging. Tape and reel options are available under different suffixes such as #TRPBF.