REF35300QDBVRQ1

Overview

The REF35300QDBVRQ1 is an automotive-grade, ultra-low-power, high-precision series voltage reference with a fixed 3.0 V output. It features ±0.05% initial accuracy and a maximum temperature coefficient of 15 ppm/°C across the -40°C to +125°C range. The device operates on a typical quiescent current of 650 nA and supports up to 10 mA sourcing and 5 mA sinking load currents. It includes an enable pin for shutdown control and a noise reduction pin.

Feature Summary

• Ultra-low power consumption with typical 650 nA quiescent current in active mode
• High precision with ±0.05% initial accuracy and low temperature drift
• Integrated enable pin for reducing shutdown current consumption
• Noise reduction pin allows external capacitor connection to minimize low-frequency noise

Applications

• Automotive front camera systems
• Driver monitoring systems
• Battery control units
• Electric power steering applications

Procurement Notes

Verify that the specific part number suffix matches the required output voltage and package configuration. Confirm AEC-Q100 qualification status for the target automotive application environment. Ensure input voltage requirements align with the specified dropout voltage characteristics under expected load conditions.

Selection Notes

Select this component when designing circuits requiring minimal power draw alongside high voltage stability. The integrated enable feature is suitable for battery-operated systems requiring power management. Consider the noise reduction pin if the application demands lower low-frequency flicker noise performance.

Part Context

This device belongs to the REF35-Q1 family of nanopower, low-drift, high-precision series references from Texas Instruments. The family offers various fixed output voltage options ranging from 1.2 V to 5.0 V within the same SOT-23-6 package footprint, allowing for design flexibility across different system voltage requirements.

Replacement Considerations

REF35300QDBVR

FAQ

How does the EN pin function affect power consumption?

The EN pin controls the device state; pulling it low disables the device to reduce current consumption, while leaving it unconnected or pulling it high keeps the device in active mode.

What is the purpose of the NR pin?

The NR (Noise Reduction) pin allows users to connect an external capacitor to ground to reduce the output voltage noise, specifically targeting low-frequency 1/f noise.