TPR3540-S3TR

Overview

The TPR3540-S3TR is a fixed-output voltage reference providing 4.096 V in an SOT23G-3 package. It operates within a supply voltage range of 2.1 V to 5.5 V and maintains stability 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. The device supports capacitive loads between 0.1 μF and 10 μF, features low output noise of 80 μVpp (0.1 Hz to 10 Hz), and offers line regulation of ±70 ppm/V across the full temperature range.

Feature Summary

• Guaranteed high initial accuracy with minimal drift over extended temperature ranges
• Low output noise performance for precision signal conditioning applications
• Capable of driving capacitive loads up to 10 μF without oscillation
• Operates efficiently with low quiescent current consumption

Applications

• Precision power supply monitoring and control circuits
• Data acquisition systems requiring stable reference voltages
• Industrial instrumentation and measurement devices

Procurement Notes

Verify the specific ordering suffix matches the required package type and tape-and-reel quantity. Confirm that the component meets RoHS compatibility and halogen-free requirements as defined by the manufacturer. Ensure the selected variant aligns with the intended operating temperature range and load conditions specified in the official datasheet before finalizing procurement orders.

Selection Notes

Select this component when a precise 4.096 V reference is required in a compact surface-mount form factor. Consider its low noise and high accuracy for sensitive analog front-ends. Evaluate the thermal management needs based on the junction-to-ambient thermal resistance provided in the specifications. Ensure the application does not exceed the maximum short-circuit current limits during fault conditions.

Part Context

This part belongs to the TPR35 series of voltage references manufactured by 3PEAK. The series includes various fixed output voltages such as 1.25 V, 2.5 V, and 3.3 V, all sharing similar performance characteristics like low drift and low noise. The TPR3540 specifically provides the higher 4.096 V output option within this family, suitable for applications needing higher reference levels without external scaling.

Replacement Considerations

Direct substitutes within the same family include TPR35xx-S3TR variants with different fixed output voltages if the system allows for voltage adjustment. Cross-brand replacements should match the SOT23G-3 package, 4.096 V output, and comparable accuracy and noise specifications.