TPR3312-S3TR

Overview

The TPR3312-S3TR is a fixed-output voltage reference IC from the 3PEAK TPR33 series, providing a stable 1.25 V output. It operates within a supply voltage range of 2.1 V to 5.5 V and maintains an initial accuracy of ±0.15% with a temperature coefficient of 30 ppm/°C across the -40°C to +125°C operating range. The device draws a quiescent current of 180 μA and features low output noise of 25 μVpp (0.1 Hz to 10 Hz). It supports capacitive loads from 0.1 μF to 10 μF and is housed in a SOT23G-3 package.

Feature Summary

• Guaranteed high initial accuracy and low temperature drift for precise voltage regulation
• Low power consumption with minimal quiescent current draw
• Capable of driving capacitive loads up to 10 μF without stability issues
• Extended industrial temperature range ensuring reliability in harsh environments

Applications

• Precision instrumentation systems
• Industrial control circuits
• Power management subsystems

Procurement Notes

Verify the specific ordering suffix matches the required package type and tape/reel quantity. Confirm RoHS compliance and halogen-free status if mandated by project specifications. Ensure the supplier provides valid traceability documentation for the manufacturing batch. Cross-reference the datasheet revision history to confirm the latest electrical characteristics are being supplied.

Selection Notes

Select this component when a fixed 1.25 V reference is required with tight tolerance and low drift. Consider the SOT23G-3 package for space-constrained PCB layouts. Evaluate the 180 μA quiescent current against system power budgets. Verify that the input voltage remains within the 2.1 V to 5.5 V operational window during all circuit conditions.

Part Context

This part belongs to the TPR33 family of voltage references manufactured by 3PEAK. The family includes variants with different fixed output voltages such as 2.048 V, 2.5 V, 3 V, 3.3 V, and 4.096 V. All members share similar performance characteristics regarding accuracy, noise, and thermal stability while differing primarily in their nominal output voltage levels.

Replacement Considerations

Other TPR33 series parts like TPR3325 or TPR3333 offer different fixed voltages but share the same package and pinout. Direct functional substitutes from other manufacturers require verification of pin compatibility, output voltage matching, and equivalent electrical parameters.