REF3125AIDBZRG4

Overview

The REF3125AIDBZRG4 is a precision series voltage reference from Texas Instruments, delivering a fixed output of 2.5 V with an initial accuracy of ±0.2%. It operates within a supply voltage range up to 5.5 V and draws a maximum supply current of 100 µA. The device features a temperature coefficient of 20 ppm/°C and supports a maximum shunt current of 10 mA. It functions reliably across an extended temperature range from -40°C to +125°C. Packaged in a compact SOT-23-3 surface-mount format, it is supplied in reel, cut tape, or MouseReel configurations.

Feature Summary

• Provides stable voltage regulation without requiring external load capacitors for stability.
• Capable of sourcing and sinking up to 10 mA of output current.
• Operates effectively under no-load conditions with minimal dropout voltage.
• Designed for low-power consumption suitable for battery-powered applications.

Applications

• Portable electronic devices
• Test and measurement instrumentation
• Medical equipment
• Power management systems

Procurement Notes

Verify the specific suffix G4 indicates RoHS compliance and manufacturing lot details. Confirm package type matches SOT-23-3 requirements. Check datasheet for latest thermal and electrical specifications before integration. Ensure ordering quantity aligns with distributor packaging options such as reel or cut tape. Validate component authenticity through authorized channels.

Selection Notes

Select this component when a 2.5 V reference with high precision is required. Consider the 100 µA quiescent current for power-sensitive designs. Verify input voltage stays within the 5.5 V maximum limit. Evaluate thermal performance within the -40°C to +125°C operating range. Compare against other REF31xx variants if different output voltages are needed.

Part Context

This part belongs to the REF31xx family of precision voltage references by Texas Instruments. These components are designed for applications demanding high accuracy and low power consumption. The series offers various output voltages while maintaining consistent performance characteristics. The REF3125 variant specifically targets circuits requiring a stable 2.5 V reference source.

Replacement Considerations

REF3125AIDBZR is a compatible alternative within the same series. REF3125AIDBZT offers identical electrical specifications with different packaging. Other REF31xx models provide similar functionality with adjusted output voltages.