CAT8801LTB-GT3

Supervisors Overview

The CAT8801LTB-GT3 is a single-channel voltage supervisor IC manufactured by onsemi, designed for power management applications. It operates within a supply voltage range of 1.2V to 5.5V and features a fixed threshold voltage of 4.625V. The device provides a push-pull output with an active-low reset signal. Key electrical parameters include a typical quiescent current of 200 nA, a maximum power dissipation of 320 mW, and a reset delay time of 270 ms. It functions reliably across an operating temperature range of -40°C to +85°C and is housed in a compact SOT-23-3 surface-mount package.

Supervisors Feature Summary

• Provides reliable system reset via a fixed 4.625V threshold monitoring circuit
• Features low-power operation with a typical quiescent current of 200 nA
• Delivers a push-pull active-low reset signal for direct interface compatibility

Supervisors Applications

• Portable battery-powered equipment requiring low standby current
• Microprocessor and microcontroller power supply supervision
• Automotive electronics operating within extended temperature ranges

Supervisors Procurement Notes

Verify the specific suffix 'L' indicates the 4.625V threshold variant during sourcing. Confirm the 'TB' designation corresponds to the SOT-23-3 package type required for your layout. Ensure compliance with RoHS directives if applicable to your manufacturing standards. Check for obsolescence status as this component family may have limited availability from primary distributors.

Supervisors Selection Notes

Select this component when a precise 4.625V monitoring level is necessary for the target application. The SOT-23-3 package offers space efficiency for dense PCB designs. Consider the 200 nA quiescent current for battery life optimization. Verify that the push-pull output capability meets the input requirements of the downstream logic or processor being supervised.

Supervisors Part Context

This part belongs to the CAT8801 series of voltage supervisors from onsemi. The series includes various threshold voltages and package options to suit different design constraints. The CAT8801LTB-GT3 specifically targets applications needing a higher voltage threshold compared to lower-voltage variants like the 1.8V or 2.5V versions available in the same family.

Supervisors Replacement Considerations

Direct substitutes within the CAT8801 series include CAT8801YTB-GT3 (2.19V threshold) or CAT8801ZSD-GT3 (SC-70-3 package). Cross-brand equivalents require matching the 4.625V threshold, SOT-23-3 package, and push-pull output characteristics.