LTC3883IUH-1#PBF

DC DC Switching Controllers Overview

The LTC3883IUH-1#PBF is a single-phase synchronous step-down DC/DC controller from the PolyPhase series, manufactured by Analog Devices Inc. It operates with an input voltage range of 4.5V to 24V and supports adjustable switching frequencies between 250 kHz and 1 MHz. The device delivers up to 30 A output current with an adjustable output voltage range of 500 mV to 5.4 V. Packaged in a 32-lead QFN (5x5 mm) with an exposed pad, it functions within a junction temperature range of -40°C to +125°C.

DC DC Switching Controllers Feature Summary

• Integrates digital power system management capabilities via I2C and PMBus serial interfaces for precise configuration and monitoring.
• Features synchronous rectification architecture to enhance conversion efficiency across varying load conditions.
• Supports clock synchronization to allow external frequency alignment and phase control for multi-phase expansion.

DC DC Switching Controllers Applications

• High-density point-of-load regulation for field-programmable gate arrays (FPGAs)
• Digital signal processor (DSP) core voltage supply
• Industrial equipment power distribution systems

DC DC Switching Controllers Procurement Notes

Verify the specific suffix against official documentation to confirm package type and temperature rating. Ensure the ordering part number matches the required interface protocols and thermal specifications. Cross-reference the manufacturer's latest datasheet to validate RoHS compliance status and any recent design changes or obsolescence notices before finalizing procurement.

DC DC Switching Controllers Selection Notes

Select this component when a single high-current buck converter with digital control is required. It is suitable for designs needing flexible frequency adjustment and remote monitoring. Consider alternative models if multiple independent outputs are necessary or if the application requires a different input voltage range than the specified 4.5V to 24V limit.

DC DC Switching Controllers Part Context

This part belongs to the LTC3883 family of PolyPhase controllers designed for demanding power management applications. The 'I' suffix indicates an industrial temperature grade, while 'UH-1' specifies the 32-lead QFN package and specific pinout configuration. The '#PBF' designation confirms lead-free construction compliant with environmental standards.

DC DC Switching Controllers Replacement Considerations

Consult official substitution guides for verified alternatives. Potential equivalents may include other single-phase controllers from the same manufacturer family, provided they match the electrical parameters and pin compatibility requirements.