MAX6330LUR-T

Overview

The MAX6330LUR-T is a precision shunt regulator with an integrated power-on reset function housed in a SOT23-3 package. It provides a regulated 5V output with ±1.5% tolerance and operates within a shunt current range of 100µA to 50mA. The device features an active-low push/pull RESET output with a 4.63V threshold (±1.5%) and a 140ms timeout period. Operating temperature ranges from -40°C to +85°C.

Feature Summary

• Combines a precision shunt voltage reference with a microprocessor supervisory circuit in a single compact package
• Provides active-low push/pull reset output to protect against power-up, power-down, and brownout conditions
• Offers high transient immunity and requires no external components for the reset timeout function

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 distributors or direct manufacturer channels. Confirm the specific L suffix indicates the 5V shunt and 4.63V reset threshold configuration. Ensure compliance with RoHS standards by checking for the +T designation if lead-free packaging is required. Validate that the minimum order increment aligns with procurement requirements.

Selection Notes

Select this component when a combined voltage regulation and system supervision solution is needed in a space-constrained design. The active-low output suits systems requiring low-active reset signals. Consider thermal derating at high ambient temperatures and maximum shunt currents to maintain specified tolerances. Verify load current requirements stay within the 100µA to 50mA operating range for stable regulation.

Part Context

Part of the MAX6330/MAX6331 family integrating shunt regulators with reset circuits. The MAX6330 variant provides an active-low reset output, contrasting with the MAX6331's active-high output. Both share identical shunt regulator specifications but differ in reset polarity. The L suffix specifically denotes the 5V shunt voltage and 4.63V reset threshold combination.

Replacement Considerations

Direct functional substitutes include other MAX6330 variants with different voltage thresholds (e.g., MAX6330TUR-T for 3.3V) or the MAX6331 series for active-high requirements. Cross-referencing pin compatibility and electrical characteristics with alternative manufacturers' similar shunt-reset ICs is recommended.