UCC3588D

Overview

The UCC3588D is a 5-bit programmable output BiCMOS power supply controller manufactured by Texas Instruments. It features a fixed operating frequency of 100 kHz and supports dual-output configurations with independent soft-start capabilities for each channel. The device integrates comprehensive protection mechanisms, including overvoltage, undervoltage, and thermal shutdown, ensuring reliable operation in demanding power supply applications.

Feature Summary

• Integrates 5-bit programmable output control for precise voltage regulation
• Provides independent soft-start functionality for dual outputs to manage inrush current
• Includes built-in overvoltage, undervoltage, and thermal protection circuits

Applications

• Pentium II processor power supply systems
• Multi-phase power supply controllers
• Precision voltage reference applications

Procurement Notes

Verify the specific package type and temperature grade against the official datasheet before procurement. Ensure that the ordering suffix matches the required tape-and-reel or tube packaging configuration. Confirm that the component meets the necessary environmental standards for the intended application environment.

Selection Notes

Select this controller for applications requiring precise multi-bit programmability and dual-channel management. Consider its fixed 100 kHz frequency when designing external passive components. Evaluate the need for independent soft-start features to protect downstream loads during power-up sequences.

Part Context

The UCC3588D belongs to Texas Instruments' family of BiCMOS power supply controllers designed for high-performance computing applications. It is specifically optimized for powering complex processors like Pentium II, offering robust control features and integrated protections within a compact surface-mount package.

Replacement Considerations

Public confirmed substitute part numbers include L6911B from STMicroelectronics and ADP3153 from Analog Devices. Verify pin compatibility and electrical specifications before substitution.