LTC3883IUH-1#TRPBF

DC DC Switching Controllers Overview

The LTC3883IUH-1#TRPBF is a synchronous step-down DC/DC controller from Analog Devices, designed for high-efficiency power management. It operates with an input voltage range of 4.5V to 24V and supports output voltages from 500mV to 5.4V. The device features a programmable switching frequency between 250kHz and 1MHz, allowing optimization for size and performance. It delivers up to 30A of output current and includes digital power system management capabilities via I2C and PMBus interfaces. The component is housed in a 32-pin QFN package and functions within a temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Integrates digital power system management through I2C and PMBus serial interfaces for precise control and monitoring.
• Supports clock synchronization to allow phase alignment across multiple controllers for reduced input ripple.
• Provides comprehensive protection features including cycle-by-cycle current limiting, thermal regulation, and soft-start functionality.

DC DC Switching Controllers Applications

• Point-of-load regulation for field-programmable gate arrays (FPGAs)
• Power supply systems for application-specific integrated circuits (ASICs)
• High-density server and telecommunications infrastructure power distribution

DC DC Switching Controllers Procurement Notes

Verify the specific suffix #TRPBF confirms tape and reel packaging when required for automated assembly processes. Ensure the operating environment temperature aligns with the industrial grade rating. Confirm that the host system supports the necessary I2C or PMBus communication protocols for digital configuration. Validate that the PCB footprint matches the 32-WFQFN package dimensions provided in the official datasheet.

DC DC Switching Controllers Selection Notes

Select this controller when digital monitoring and remote configuration are essential for power delivery. The wide input voltage range suits applications powered by 12V or 24V buses. Consider the maximum 30A output capability against load requirements. Evaluate the need for clock synchronization if multiple phases are deployed to minimize total input capacitance.

DC DC Switching Controllers Part Context

This component belongs to the PolyPhase series of synchronous buck controllers. It complements other devices like the LTC3880 and LTC3883EUH variants, which may differ in temperature ratings or packaging formats. The family emphasizes digital power management integration alongside traditional analog control loops for enhanced system visibility.

DC DC Switching Controllers FAQ

Does the LTC3883IUH-1 support external clock synchronization?

Yes, the device includes a SYNC pin that allows it to synchronize its switching frequency with an external clock source or another controller in a multi-phase system.

What is the minimum output voltage supported by this controller?

The controller supports output voltages down to 500mV, making it suitable for low-voltage core supplies.