LMV331X-S5TR

Overview

The LMV331X-S5TR is a single-channel, low-power voltage comparator manufactured by 3PEAK in an SOT23-5 surface-mount package. It operates on a supply voltage range of 2.5 V to 5.5 V with a quiescent current of 50 μA per channel. The device features an open-drain output and includes internal hysteresis for noise immunity. Input common-mode voltage extends 100 mV beyond the power rails, and it lacks ESD diodes between inputs/output and the positive supply. Operating temperature ranges from -40°C to +125°C.

Feature Summary

• Low power consumption suitable for battery operation
• Internal hysteresis ensures clean switching
• Open-drain output allows flexible logic level shifting
• Input common-mode range extends beyond supply rails

Applications

• Peak and Zero-Crossing Detectors
• Threshold Detectors/Discriminators
• Sensing at the Ground or Supply Line
• Logic Level Shifting or Translation
• Window Comparators

Procurement Notes

Verify the specific suffix against the manufacturer's official order information table to confirm package type and automotive qualification status. Ensure the selected variant matches the required operating temperature range and packaging quantity specifications defined in the datasheet before finalizing procurement orders.

Selection Notes

Select this component when designing circuits requiring low supply current and rail-to-rail input capability within a 5.5 V limit. The absence of input-to-supply ESD diodes makes it ideal for level-shifting applications where the pull-up voltage differs from the supply voltage. Verify that the open-drain output configuration meets the system's logic interface requirements.

Part Context

This part belongs to the LMV331X/LMV393X series of 5-V low-power comparators. The 'X' indicates a family designation covering multiple packages, while 'S5TR' specifies the SOT23-5 tape-and-reel format. The series is designed for portable consumer products and general-purpose signal conditioning where space and power efficiency are critical constraints.

Replacement Considerations

Direct replacements include other single-channel comparators with open-drain outputs and similar supply voltage ranges. Verify pin compatibility and electrical characteristics such as propagation delay and offset voltage to ensure functional equivalence in existing designs.