TPR3325-QF11R-S

Overview

The TPR3325-QF11R-S is a fixed-output voltage reference IC from the TPR33 series, manufactured by 3PEAK. It provides a precise 2.5 V output with an initial accuracy of ±0.15% and a temperature coefficient of 30 ppm/°C. The device operates within a supply voltage range of 2.1 V to 5.5 V and draws a quiescent current of 180 µA. It features low output noise of 50 µVpp (0.1 Hz to 10 Hz) and supports capacitive loads between 0.1 µF and 10 µF. The component is housed in an 8-UFQFN package measuring 1.5x1.5 mm and functions reliably across an operating temperature range of -40°C to +125°C.

Feature Summary

• Guaranteed high initial accuracy and low temperature drift for stable reference performance
• Low output noise characteristics suitable for precision signal processing applications
• Capable of driving capacitive loads ranging from 0.1 µF to 10 µF without instability

Applications

• Power supply monitoring and regulation circuits
• Precision instrumentation and measurement systems
• Industrial control and automation equipment

Procurement Notes

Verify the specific suffix QF11R-S against the manufacturer's official documentation to confirm the 8-UFQFN package configuration, as standard TPR3325 variants may utilize different packaging. Ensure compliance with RoHS3 standards and check moisture sensitivity level (MSL 3) requirements for surface mount assembly processes. Confirm that the ordering information matches the exact pinout and marking codes specified in the latest datasheet revision.

Selection Notes

Select this component when a 2.5 V reference with ±0.15% initial accuracy is required. It is suitable for designs needing low noise (50 µVpp) and operation over an extended industrial temperature range (-40°C to +125°C). Consider the 180 µA quiescent current for power-sensitive applications. Verify that the 8-UFQFN package fits the PCB layout constraints compared to the SOT23G-3 option available in the broader TPR33 family.

Part Context

This part belongs to the TPR33 series of voltage references from 3PEAK, which offers multiple fixed output voltages including 1.25 V, 2.048 V, 3 V, 3.3 V, and 4.096 V. While the series primarily lists SOT23G-3 packages in some documentation, the TPR3325-QF11R-S specifically utilizes an 8-UFQFN package. The series shares common electrical characteristics such as line regulation and load regulation profiles, ensuring consistent performance across different output voltage options.

Replacement Considerations

TPR3325-S3TR is a direct functional substitute within the same series offering the same 2.5 V output but in an SOT23G-3 package. Other TPR33xx variants provide different fixed voltages but share similar electrical specifications and operating conditions.