ADM1033ARQ

Overview

The ADM1033ARQ is a thermal monitor and fan speed controller manufactured by onsemi. It integrates one local and one remote temperature channel with ±1°C accuracy. The device supports SMBus 2.0, 1.1, and 1.0 interfaces and includes a fan speed (RPM) controller with look-up table options. It operates within a supply voltage range of 3.0 V to 5.5 V and is housed in a small 16-lead QSOP package.

Feature Summary

• Integrates local and remote temperature sensing channels with high accuracy
• Includes programmable over/undertemperature limits and fault queue
• Features an SMBus interface compliant with versions 2.0, 1.1, and 1.0
• Provides fan speed control with linear and discrete look-up table options

Applications

• Desktop and notebook PCs
• Embedded systems
• Telecommunications equipment
• LCD projectors

Procurement Notes

Verify the specific suffix for the requested part number against official datasheets to ensure correct packaging and lead-free status. Confirm compatibility with required SMBus protocols and operating temperature ranges before procurement. Check for any RoHS compliance documentation if required by your manufacturing standards.

Selection Notes

Select this component when precise thermal monitoring and active cooling control are required in compact designs. Ensure the application utilizes an SMBus-compatible host controller. Verify that the remote sensor type matches the device's input requirements for optimal accuracy.

Part Context

This component belongs to the ADM1033 series of thermal management ICs. It is designed for microprocessor-based systems requiring integrated temperature monitoring and fan regulation. The device simplifies system design by combining multiple thermal functions into a single chip.

Replacement Considerations

The ADM1033ARQZ-REEL is a listed similar part number from Analog Devices and onsemi. Verify pinout and feature parity before substitution.