TPR3125-S5TR-S

Overview

The TPR3125-S5TR-S is a fixed-output voltage reference IC from the 3PEAK TPR31 series, providing a nominal output of 2.5 V in an SOT23-5 package. It operates within a supply voltage range of 3 V to 15 V and supports bidirectional current sinking and sourcing up to ±10 mA. The device features high initial accuracy with a maximum tolerance of ±0.05% and low temperature drift, characterized by a typical coefficient of 4 ppm/°C across the −40°C to +125°C operating range. Electrical specifications include a quiescent current of approximately 1 mA, line regulation of 0.1 ppm/V, and load regulation of 2.5 ppm/mA. Noise performance is specified at 3 μVpp/V over the 0.1 Hz to 10 Hz bandwidth.

Feature Summary

• High precision with 0.05% initial accuracy and low temperature drift for stable reference applications
• Bidirectional current capability supporting both sinking and sourcing of ±10 mA
• Low noise output suitable for high-resolution data acquisition systems
• Wide input voltage range accommodating various power supply configurations

Applications

• Battery test equipment requiring precise voltage references
• Industrial control systems demanding high stability
• Precision instrumentation and measurement devices
• Medical equipment utilizing high-resolution analog-to-digital conversion

Procurement Notes

Verify the specific ordering suffix and package marking information against the manufacturer's official documentation before procurement. Confirm that the component meets the required moisture sensitivity level (MSL 3) and environmental compliance standards such as RoHS compatibility. Ensure that the selected quantity aligns with the standard tape and reel packaging configuration provided by the supplier.

Selection Notes

Select this component when a fixed 2.5 V reference with high accuracy and low drift is required in a compact SOT23-5 footprint. Consider the bidirectional current capability if the application involves driving capacitive loads or interfacing with ADCs that require both sourcing and sinking currents. Evaluate the thermal resistance characteristics to ensure junction temperature limits are not exceeded under maximum load conditions.

Part Context

The TPR3125-S5TR-S belongs to the TPR31 family of low-noise, low-drift precision voltage references manufactured by 3PEAK. This series is designed for applications requiring high resolution and excellent temperature stability. The family includes various fixed output voltages ranging from 1.25 V to 5 V, all sharing similar electrical characteristics and packaged in SOT23-5 form factors for space-constrained designs.

Replacement Considerations

Compatible substitutes within the same product family include TPR3112-S5TR-S, TPR3120-S5TR-S, TPR3130-S5TR-S, TPR3133-S5TR-S, TPR3140-S5TR-S, TPR3145-S5TR-S, and TPR3150-S5TR-S. These parts share identical pinouts and electrical performance profiles but differ only in their fixed output voltage levels.

FAQ

What is the maximum temperature coefficient for the TPR3125-S5TR-S?

The maximum temperature coefficient is 10 ppm/°C from −40°C to +125°C, with a typical value of 4 ppm/°C over the same range.

Can the TPR3125-S5TR-S source and sink current simultaneously?

No, it supports bidirectional current flow, meaning it can either source or sink up to ±10 mA, but not simultaneously at those maximum values.

What is the recommended output capacitor range for stability?

The recommended output capacitance range is between 0.1 μF and 100 μF, with a typical recommendation of 1 μF to 50 μF for optimal transient performance.