LTC3883IUH#WTRPBF

DC DC Switching Controllers Overview

The LTC3883IUH#WTRPBF is a single-phase PolyPhase synchronous step-down DC/DC controller manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 24V and supports switching frequencies from 250kHz to 1MHz. The device delivers up to 30A output current with an adjustable output voltage between 500mV and 5.4V. It features I2C and PMBus digital interfaces for power system management, including phase control and clock synchronization. Packaged in a 32-lead QFN (5x5mm) in tape and reel format, it functions within a junction temperature range of -40°C to 125°C.

DC DC Switching Controllers Feature Summary

• Integrates I2C and PMBus digital interfaces for comprehensive power system management and monitoring.
• Supports clock synchronization and phase control for multiphase expansion capabilities.
• Includes built-in protection features such as overcurrent limiting, soft start, and power good signaling.

DC DC Switching Controllers Applications

• FPGA core voltage regulation
• General-purpose point-of-load (POL) conversion
• Telecommunications infrastructure power systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #WTRPBF confirms the tape and reel packaging configuration required for automated assembly processes. Ensure the operating temperature grade matches the application's thermal requirements, as industrial variants support extended junction temperatures. Confirm RoHS compliance status aligns with environmental regulations for the target market. Cross-reference the datasheet revision to ensure compatibility with existing design files and simulation models.

DC DC Switching Controllers Selection Notes

Select this component when digital programmability via PMBus or I2C is required for dynamic voltage scaling or system monitoring. The single-phase topology suits applications requiring up to 30A without the complexity of multi-phase interleaving. Consider the 32-QFN package for space-constrained designs requiring efficient thermal dissipation through the exposed pad. Evaluate the need for clock synchronization if integrating into larger multiphase systems.

DC DC Switching Controllers Part Context

This part belongs to the LTC3883 family of PolyPhase controllers, designed for high-efficiency synchronous buck applications. The series emphasizes digital control flexibility, allowing integration into advanced power management architectures. It serves as a building block for scalable power solutions in computing and communication equipment where precise voltage regulation and diagnostic feedback are critical.

DC DC Switching Controllers Replacement Considerations

Consult official substitution guides for equivalent single-phase controllers with similar current ratings and digital interface support. Verify pinout compatibility and thermal performance characteristics before replacing existing designs.

DC DC Switching Controllers FAQ

Does the LTC3883IUH#WTRPBF support external clock synchronization?

Yes, the device includes a CLKIN pin that allows synchronization to an external clock source for multiphase operation.

What is the minimum output voltage supported by this controller?

The controller supports an adjustable output voltage range starting from 500mV.