MAX16033LLB31+

Supervisors Overview

The MAX16033LLB31+ is a low-power voltage supervisory circuit manufactured by Analog Devices Inc. (Maxim Integrated). It operates within a supply voltage range of 0 V to 5.5 V and consumes only 22 µA of quiescent current. The device features an under-voltage threshold of 2.85 V and an over-voltage threshold of 3 V, with a reset delay time of 280 ms. It provides an active-low, open-drain output and includes manual reset functionality. Packaged in a compact 10-UDFN format, it supports battery backup switchover applications.

Supervisors Feature Summary

• Provides precise voltage monitoring with dedicated under-voltage and over-voltage thresholds for system protection.
• Integrates manual reset capability allowing user-initiated system recovery independent of voltage conditions.
• Supports battery backup switchover functions to maintain data integrity during power transitions.

Supervisors Applications

• Microprocessor reset circuits requiring low standby current
• Battery-powered systems needing backup switchover management
• Portable electronic devices with strict power consumption constraints

Supervisors Procurement Notes

Verify the specific suffix LLB31 against the official datasheet to confirm threshold voltages and package type. Ensure compatibility with the target operating temperature range of -40°C to +85°C. Confirm that the open-drain output configuration aligns with the downstream logic requirements. Check for RoHS compliance documentation if required by regional regulations.

Supervisors Selection Notes

Select this component when a single-input supervisory circuit with manual reset is required. The 2.85 V under-voltage threshold suits applications where brown-out detection at slightly above 2.8 V is necessary. The low 22 µA current draw makes it suitable for battery-operated designs where standby power is critical. Ensure the 5.5 V maximum input rating covers the highest expected supply voltage.

Supervisors Part Context

This part belongs to the MAX16033–MAX16040 series of supervisory circuits from Maxim Integrated. These devices are designed for microprocessor reset, power-fail warning, and watchdog functions. The series offers various threshold options and package types, including small μDFN packages, to fit space-constrained designs while maintaining high reliability in industrial and commercial environments.

Supervisors Replacement Considerations

Consult the official cross-reference list for verified substitutes. Ensure any replacement maintains the 10-UDFN footprint and similar electrical characteristics, particularly the 2.85 V under-voltage threshold and 280 ms reset delay. Verify that the alternative device also supports manual reset and battery backup switchover if these features are essential to the design.