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Product Detailed Parameters
- Description：IC VREF SHUNT 1.4% SOT23-3
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tape & Reel (TR),Bulk
- Output Type：Fixed
- Voltage - Output (Min/Fixed)：5V
- 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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Overview
The MAX6331LUR+T is a precision shunt regulator with an active-high reset output, housed in a SOT23-3 package. It regulates the shunt voltage to 5.0V with ±1.5% tolerance and operates over a current range of 100µA to 50mA. The device provides a power-on reset function with a threshold of 4.63V (±1.5%) and a fixed timeout period of 140ms. It functions within an operating temperature range of -40°C to +85°C.
Feature Summary
- Combines a precision shunt regulator with a microprocessor supervisory circuit in a single compact package.
- Provides an active-high push/pull reset output that remains asserted during power-up, power-down, and brownout conditions.
- Features a factory-set reset threshold voltage with high accuracy and a fixed internal timeout period requiring no external components.
Applications
- Controllers
- Household Appliances
- Intelligent Instruments
- Critical µP and µC Power Monitoring
- Portable/Size-Sensitive Equipment
Procurement Notes
Verify component authenticity through authorized Analog Devices channels or certified distributors. Confirm RoHS compliance status via official documentation. Ensure ordering suffixes match specific electrical requirements. Check for obsolescence notices or lifecycle changes before finalizing procurement plans.
Selection Notes
Select this component when a combined voltage regulation and reset function is required in space-constrained designs. Choose based on the necessary shunt voltage level and reset polarity. Verify that the load current requirements fall within the specified 100µA to 50mA operational range for stable regulation.
Part Context
This part belongs to the MAX6330/MAX6331 family of precision shunt regulators with integrated reset circuits. These devices are designed to replace multiple discrete components, reducing board space and cost while improving reliability in low-voltage microprocessor systems.
Replacement Considerations
MAX6330LUR+T offers identical specifications but features an active-low reset output instead of active-high.
FAQ
What is the reset output state of the MAX6331?
The MAX6331 features an active-high RESET output, which is the inverse of the MAX6330's active-low output.
How does the bypass capacitor affect stability?
The bypass capacitor on the SHUNT pin affects load-transient response; insufficient capacitance can cause oscillation, while excessive capacitance increases recovery time.
