TPR3512-S3TR

Overview

The TPR3512-S3TR is a fixed-output voltage reference from the 3PEAK TPR35 family, providing a nominal output of 1.25 V in an SOT23G-3 package. It operates within a supply voltage range of 2.1 V to 5.5 V and maintains stability across temperatures from −40°C to +125°C. Key electrical characteristics include an initial accuracy of ±0.2%, a temperature coefficient of 30 ppm/°C (−40°C to 85°C) or 50 ppm/°C (−40°C to 125°C), and a quiescent current of 210 μA typical. The device supports capacitive loads between 0.1 μF and 10 μF and features low output noise of 25 μVpp.

Feature Summary

• Guaranteed high initial accuracy with a maximum deviation of 0.2% at 25°C
• Low temperature drift ensuring stable performance across extended industrial ranges
• Capable of driving capacitive loads up to 10 μF without instability
• Low quiescent current consumption suitable for power-sensitive designs

Applications

• Precision instrumentation systems requiring stable reference voltages
• Industrial control circuits demanding wide temperature operation
• Power management architectures utilizing buffered references

Procurement Notes

Verify that the specific order number matches the required output voltage variant within the TPR35 family, as suffixes denote different voltage levels. Confirm the package type corresponds to SOT23G-3 for the -S3TR designation. Ensure compliance with RoHS and halogen-free requirements if specified by the project constraints. Cross-reference the thermal resistance values against the intended PCB layout to guarantee junction temperature limits are not exceeded during operation.

Selection Notes

Select this component when a fixed 1.25 V reference is required with tight initial tolerance and low drift over temperature. Consider the 210 μA quiescent current for battery life calculations. Verify that the load capacitance remains within the 0.1 μF to 10 μF stability window. Evaluate the dropout voltage specifications against the minimum available supply rail to ensure proper regulation under all operating conditions.

Part Context

The TPR3512-S3TR belongs to the TPR35 series of voltage references manufactured by 3PEAK. This series includes multiple fixed output voltage options ranging from 1.25 V to 4.096 V, all sharing similar electrical characteristics and packaging options. The product line is designed for applications requiring high precision and reliability in signal chain and data acquisition environments.

Replacement Considerations

Direct substitutes within the same family include other TPR35 variants such as TPR3525-S3TR or TPR3533-S3TR, provided the system design can accommodate the different fixed output voltages. Ensure pin compatibility and thermal characteristics remain consistent when evaluating alternative packages or manufacturers.

FAQ

What is the maximum capacitive load the TPR3512-S3TR can drive stably?

The device is stable with capacitive loads ranging from 0.1 μF to 10 μF.

How does the temperature coefficient vary across the operating range?

The temperature coefficient is 30 ppm/°C from −40°C to 85°C and increases to 50 ppm/°C from −40°C to 125°C.