REF35300QDBVR

Overview

The REF35300QDBVR is a fixed-output series voltage reference from Texas Instruments, providing a nominal output of 3.0V in a 6-pin SOT-23 package. It features an initial accuracy of ±0.05% and a maximum temperature coefficient of 12ppm/°C across the -40°C to +105°C range. The device operates with a typical quiescent current of 650nA and supports input voltages up to 6V. It offers a sourcing output current of 10mA and sinking capability of 5mA.

Feature Summary

• Ultra-low power consumption with typical quiescent current of 650nA for battery-operated applications
• High precision performance with ±0.05% initial accuracy and low drift characteristics
• Integrated enable pin to reduce shutdown current consumption when not in use
• Noise reduction pin allows external capacitor connection to minimize low-frequency noise

Applications

• Blood glucose monitors
• Flow transmitters
• Servo drive control modules
• Power quality analyzers
• Oscilloscopes

Procurement Notes

Verify the specific suffix 'QDBVR' corresponds to the required automotive qualification status, SOT-23 packaging, and reel/cut-tape delivery format. Confirm that the 3.0V output variant matches the system design requirements before ordering. Ensure compatibility with the manufacturer's humidity sensitivity classifications and recommended soldering profiles.

Selection Notes

Select this component when a fixed 3.0V reference is required with high precision and minimal power draw. The SOT-23-6 package suits space-constrained designs. Consider the 12ppm/°C drift specification against environmental temperature variations. Verify that the 10mA sourcing current meets the load requirements of the connected ADC or sensor circuitry.

Part Context

This part belongs to the REF35 family of nanopower, high-precision series references designed for portable and industrial applications. The family includes various output voltages ranging from 1.024V to 5.0V. The REF35300 specifically provides the 3.0V option within the standard SOT-23 footprint, balancing size, power, and accuracy for data converter biasing.

Replacement Considerations

REF35300YBHR (WCSP package equivalent)

FAQ

How does the EN pin affect power consumption?

The EN pin allows the device to be disabled, reducing the quiescent current significantly during shutdown mode compared to active operation.

What is the purpose of the NR pin?

The NR pin is used to connect an external capacitor to reduce the output voltage noise, particularly the low-frequency 1/f noise.