Manufacturer Part Number
REF3433IDBVR
Manufacturer
Texas Instruments
Introduction
Precision low-power fixed 3.3V output voltage reference in a SOT-23 package.
Product Features and Performance
Series reference with stable fixed 3.3V output
Suitable for high-accuracy applications with ±0.05% tolerance
Low temperature coefficient at 6ppm/°C for consistent performance
Low noise specifications with 5µVp-p (0.1Hz to 10Hz) and 24µVrms (10Hz to 10kHz)
Minimal current supply need at 95µA
Wide input voltage range from 3.8V to 12V
Capable of driving 10 mA output current
Operates across an extensive temperature range from -40°C to 125°C
Product Advantages
Exceptional voltage precision for critical applications
Highly stable under changing temperature conditions
Energy-efficient for battery-powered devices
Low-noise operation ideal for sensitive electronics
Long operating life suitable for industrial environments
Compact surface-mount form factor for dense PCB layouts
Key Technical Parameters
Fixed Output Voltage: 3.3V
Output Current Capability: 10 mA
Input Voltage Range: 3.8V to 12V
Low Tolerance: ±0.05%
Temperature Coefficient: 6ppm/°C
Low Noise Levels: 5µVp-p and 24µVrms
Supply Current: 95µA
Operating Temperature Range: -40°C to 125°C
Quality and Safety Features
Stringent manufacturing standards ensure high-reliability
Conforms with Texas Instruments' quality management processes
Compatibility
Compatible with a wide range of microcontrollers and digital systems
Surface mount SOT-23 packaging fits standard PCB layouts
Application Areas
Precision power supply control
Data acquisition systems
Portable medical devices
Industrial instrumentation
High-performance ADCs/DACs
Automotive electronics
Product Lifecycle
Current status is Active
Not indicated to be nearing discontinuation
Tooling and future upgrades typically available
Several Key Reasons to Choose This Product
High precision voltage regulation for sensitive applications
Supports wide operating temperature range for harsh environments
Ultra-low power consumption extends battery life for portable devices
Low-noise output beneficial for high-fidelity and precision electronic systems
Robust design and reliable performance from a respected manufacturer
Simple integration with a variety of electronic systems due to the standard SOT-23-6 package
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