TPR3533-S3TR

Overview

The TPR3533-S3TR is a shunt voltage reference IC from the 3PEAK TPR35 family, manufactured by 3PEAK. It provides a fixed output voltage of 3.3 V with an initial accuracy tolerance of ±0.2%. The device operates within a supply voltage range of 2.1 V to 5.5 V and supports an output current up to 20 mA. It features a quiescent current of 210 μA and maintains stability with capacitive loads between 0.1 μF and 10 μF. The component is housed in a SOT23G-3 package and is rated for operation across a temperature range of −40°C to +125°C.

Feature Summary

• Guaranteed high initial accuracy with a maximum deviation of 0.2%.
• Low temperature coefficient ensuring stable performance across extended industrial temperatures.
• Capable of driving capacitive loads ranging from 0.1 μF to 10 μF without oscillation.
• Includes short-circuit protection with a defined sourcing and sinking current limit.

Applications

• Precision instrumentation systems requiring stable reference voltages.
• Industrial control circuits demanding wide operating temperature ranges.
• Power management subsystems utilizing analog-to-digital conversion.

Procurement Notes

Verify that the specific order number matches TPR3533-S3TR to ensure the correct 3.3 V output variant. Confirm the package type is SOT23G-3 and check the marking code R3E on received units. Ensure handling procedures account for ESD sensitivity ratings of ±4 kV HBM and ±1.5 kV CDM during assembly.

Selection Notes

Select this component when a fixed 3.3 V reference is required with tight initial accuracy. Consider the 210 μA quiescent current for power budgeting. Verify that the load capacitance remains within the 0.1 μF to 10 μF range to maintain stability. Ensure the supply voltage stays above the minimum dropout requirements for the expected load conditions.

Part Context

This part belongs to the TPR35 series of low-noise, low-drift precision voltage references produced by 3PEAK. The series includes multiple fixed output voltage options such as 1.25 V, 2.5 V, and 4.096 V. All variants share similar electrical characteristics and are designed for applications requiring high thermal stability and low noise performance in compact surface-mount packages.

Replacement Considerations

Other members of the TPR35 family, such as TPR3525-S3TR or TPR3540-S3TR, offer different fixed output voltages but share identical pinouts and packaging. Direct substitution requires verifying that the system design accommodates the alternative reference voltage level.