TPR5033-SO1R

Overview

The TPR5033-SO1R is a high-precision voltage reference from the 3PEAK TPR50 series, providing a fixed output of 3.3 V in an SOP8 package. It operates within a supply voltage range of 3 V to 15 V and supports bidirectional current sourcing and sinking of ±10 mA. The device features low dropout voltage, with typical values of 200 mV at ±5 mA and 400 mV at ±10 mA across the -40°C to 125°C temperature range. Initial accuracy is maintained within ±0.05%, while temperature coefficients are specified as 1 ppm/°C (0°C to 70°C), 2 ppm/°C (-40°C to 105°C), and 2.5 ppm/°C (-40°C to 125°C). Output noise is typically 3 μVpp/V.

Feature Summary

• Provides fixed 3.3 V output with high initial accuracy of ±0.05%.
• Supports both sinking and sourcing currents up to ±10 mA with low dropout characteristics.
• Features a dedicated noise reduction pin for additional filtering capability.
• Operates reliably across an extended industrial temperature range of -40°C to 125°C.

Applications

• Battery test equipment
• Industry control systems
• Precision instrumentation
• Medical equipment

Procurement Notes

Verify the specific ordering suffix SO1R corresponds to the SOP8 package variant when sourcing. Confirm that the required output voltage matches the fixed 3.3 V specification, as other voltages require different part numbers within the TPR50 family. Ensure compatibility with the 3 V to 15 V input range and check thermal management requirements for the SOP8 package given the junction-to-ambient thermal resistance data provided in the datasheet.

Selection Notes

Select this component when a stable 3.3 V reference is needed for high-resolution systems requiring low drift and noise. Consider the NR pin if lower noise performance than the typical 3 μVpp/V is required by connecting an external capacitor. Evaluate the thermal dissipation based on the load current and ambient temperature, utilizing the provided thermal resistance values for the SOP8 package to ensure junction temperatures remain within safe operating limits.

Part Context

This part belongs to the TPR50 series of low-noise, low-drift precision voltage references manufactured by 3PEAK. The series offers multiple fixed output voltages ranging from 1.25 V to 5 V in both SOP8 and MSOP8 packages. All variants share common electrical characteristics such as ±10 mA output current capability and high initial accuracy, making the series suitable for applications demanding precise voltage regulation over wide temperature ranges.

Replacement Considerations

Direct substitutes within the same family include TPR5033-VS1R-S for the MSOP8 package variant. Other TPR50 models provide different fixed output voltages but share identical functional interfaces and electrical performance profiles.

FAQ

How can the output noise be further reduced?

Connect a capacitor of 10 nF or larger from the NR pin to ground, placing it as close to the pin as possible to minimize output noise levels.

What is the maximum capacitive load supported?

The device supports a capacitive load ranging from 0.1 μF to 100 μF.