MAX6357TZUT

Overview

The MAX6357TZUT+T is a triple microprocessor supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It monitors three independent voltage inputs with preset thresholds of 1.8 V, 2.5 V, 3 V, 3.3 V, or 5 V. The device features active-low push-pull reset outputs and supports manual reset functionality. It operates within a supply voltage range up to 5.5 V and consumes only 20 µA of quiescent current. The component provides a fixed reset delay time of 280 ms and functions reliably across an extended temperature range from -40°C to +85°C.

Feature Summary

• Monitors multiple power-supply voltages simultaneously to ensure system reliability
• Provides active-low push-pull reset outputs for direct interface compatibility
• Includes debounced manual reset input for user-initiated system control

Applications

• Embedded systems requiring multi-rail power supervision
• Portable electronic devices with low-power constraints
• Industrial control units operating in extended temperature environments

Procurement Notes

Verify the exact suffix configuration against official datasheets, as variations exist within the MAX6357 family. Confirm availability status directly with authorized distributors, as this specific part number may be discontinued or subject to limited supply. Ensure RoHS compliance documentation matches the specific manufacturing batch requirements for your assembly process.

Selection Notes

Select this component when simultaneous monitoring of three distinct voltage rails is required without external discrete components. The push-pull output architecture simplifies interface design compared to open-drain alternatives. Consider the 280 ms reset delay duration to ensure it aligns with the startup timing requirements of the target microprocessor or logic circuits.

Part Context

This device belongs to the MAX635x series of uP supervisors designed to improve system accuracy over discrete solutions. It integrates precision factory-set thresholds into a compact SOT-23-6 package. The series is engineered to replace multiple individual voltage monitor ICs, reducing board space and component count in complex power management architectures.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.