ADP3153ARU-REEL

Overview

The ADP3153ARU-REEL is a switching controller manufactured by Analog Devices Inc., designed for high-efficiency current-mode operation. It features a narrow body TSSOP-20 package and supports a maximum switching frequency of 250 kHz. The device operates with a nominal input voltage of 5 V and includes comprehensive protection mechanisms such as short circuit, overvoltage, and crowbar protection. It integrates an on-board linear regulator and provides a power good output signal.

Feature Summary

• Digitally programmable output voltage ranging from 1.8 V to 3.5 V via a 5-bit interface
• Dual N-channel synchronous driver configuration for enhanced efficiency
• Integrated short circuit, overvoltage, and crowbar protection circuits
• Includes an on-board linear regulator and power good output indicator

Applications

• Desktop PC power supplies
• Intel Pentium II processor power modules
• Deschutes processor power systems
• VRM 8.2 compatible designs

Procurement Notes

Verify the specific suffix REEL7 against the datasheet to confirm tape and reel packaging specifications. Ensure the narrow body TSSOP-20 package variant matches your PCB footprint requirements. Confirm RoHS compliance status directly with the manufacturer or authorized distributors prior to procurement.

Selection Notes

Select this component for applications requiring precise digital control of dual synchronous buck converters. The 5-bit programmability allows for flexible voltage adjustment suitable for various processor core voltages. Ensure the design accommodates the 250 kHz switching frequency constraints and thermal requirements of the TSSOP-20 package.

Part Context

This part belongs to the ADP3153 series of dual power supply controllers specifically engineered for Intel processor VRMs. It replaces older analog control methods with digitally programmable settings, offering improved accuracy and flexibility for desktop computing power architectures.

Replacement Considerations

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