MAX6331SUR+T

$1.23

Description：IC VREF SHUNT 1.3% SOT23-3
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tape & Reel (TR)

SKU:961aa6f2d5d6 Category: Voltage Reference Brand: Analog Devices Inc./Maxim Integrated

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Product introduction

Product Detailed Parameters

Description：IC VREF SHUNT 1.3% SOT23-3
Series：-
Mfr：Analog Devices Inc./Maxim Integrated
Package：Tape & Reel (TR)
Output Type：Fixed
Voltage - Output (Min/Fixed)：3V
Voltage - Output (Max)：-
Current - Output：50 mA
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：TO-236-3, SC-59, SOT-23-3
Supplier Device Package：SOT-23-3
Grade：-
Qualification：-

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MAX6331SUR+T

Overview

The MAX6331SUR+T is a precision shunt regulator with an active-high reset output, housed in a SOT23-3 package. It regulates the SHUNT pin to 3.0V with ±1.5% tolerance and provides a power-on reset signal when VSHUNT exceeds 2.78V. The device operates from -40°C to +85°C with a 140ms reset timeout period. Shunt current ranges from 100µA to 50mA, supporting load currents up to 20mA on the RESET pin.

Feature Summary

Combines a precision shunt voltage reference with a microprocessor supervisory circuit in a single component
Provides an active-high push/pull reset output that remains asserted during power-up, power-down, and brownout conditions
Eliminates external components for reset timing by integrating a fixed 140ms timeout period

Applications

Microprocessor-based system power monitoring
Controllers and intelligent instruments
Household appliances
Portable or size-sensitive equipment

Procurement Notes

Verify the specific suffix 'S' corresponds to the required 3.0V shunt voltage and 2.78V reset threshold before ordering. Confirm lead-free packaging requirements match the '+T' designation. Ensure the minimum order increment of 2,500 pieces aligns with project procurement constraints. Cross-reference the top marking EPAA to validate authenticity upon receipt.

Selection Notes

Select this part when a combined voltage regulation and reset function is needed in a compact footprint. The active-high output suits systems requiring non-inverted reset signals. Verify that the 3.0V regulated output matches the downstream logic supply requirements. Ensure the input voltage range allows for proper series resistor calculation to maintain shunt current within the 100µA to 50mA operating window.

Part Context

This component belongs to the MAX6330/MAX6331 family of precision shunt regulators with integrated reset circuits. The MAX6331 variant specifically features an active-high reset output, contrasting with the active-low output of the MAX6330. Both share identical shunt regulation characteristics and package options, differing only in the polarity of the supervisory output signal.