UCC3882DW

Overview

The UCC3882DW is a synchronous buck controller manufactured by Unitrode Corporation. It operates in current-mode control with pulse width modulation, supporting a maximum switching frequency of 700kHz and a maximum output drive current of 1.5A. The device functions within an input voltage range of 10.8V to 15V, with a nominal rating of 12V. It is housed in a 28-pin SOIC package (PDSO28) and is rated for operation up to a maximum temperature of 70°C.

Feature Summary

• Implements current-mode control architecture for enhanced stability and dynamic response
• Integrates synchronous rectification capabilities for improved efficiency
• Features high-speed PWM logic optimized for fast transient performance

Applications

• Intel VID code regulated power supplies
• Synchronous buck converter designs
• High-density point-of-load regulation modules

Procurement Notes

Verify the manufacturer designation carefully, as listings may attribute this part to Unitrode Corporation or Texas Instruments due to historical acquisition. Confirm the specific suffix matches the required package and temperature grade. Ensure the component meets the specified 28-pin SOIC form factor and electrical ratings before integration into the design.

Selection Notes

Select this controller for applications requiring precise current-mode regulation and synchronous rectification. The 700kHz frequency allows for compact magnetic component sizing. Verify that the 1.5A drive capability meets the gate charge requirements of the external MOSFETs. Ensure the operating environment remains within the 70°C thermal limit.

Part Context

This component belongs to the UCC3882 family of synchronous buck controllers originally developed by Unitrode. The series is designed for high-performance DC-DC conversion, particularly in computing and telecommunications sectors where efficient voltage regulation is critical. The DW variant specifically denotes the plastic small outline package configuration.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.