Overview
The REF3318AIDBZR is a low-power, precision voltage reference from Texas Instruments, part of the REF33xx family. This component is designed for applications requiring high accuracy and low power consumption. It is available in a compact SC70-3 package, making it ideal for portable and battery-powered devices. The REF3318AIDBZR offers a stable output voltage of 1.8 V with minimal temperature drift and low dropout voltage, ensuring reliable performance across a wide range of operating conditions.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 1.8 V - 0.15% | 1.8 V | 1.8 V + 0.15% | V |
| Output Voltage Noise (0.1 Hz to 10 Hz) | 50 μVPP | μVPP | ||
| Temperature Drift | 30 ppm/°C | 30 ppm/°C | ppm/°C | |
| Supply Current (IQ) | 3.9 μA | 5 μA | 8.5 μA | μA |
| Dropout Voltage | 110 mV | mV | ||
| Output Current | ±5 mA | mA | ||
| Operating Temperature Range | -40°C | 125°C | °C | |
| Input Voltage Range | VOUT + 0.2 V | 5.5 V | V |
Key Features
- Microsize Packages: SC70-3, SOT-23-3, and UQFN-8
- Low Supply Current: 3.9 μA (typical)
- Extremely Low Dropout Voltage: 110 mV (typical)
- High Output Current: ±5 mA
- Low Temperature Drift: 30 ppm/°C (maximum)
- High Initial Accuracy: ±0.15% (maximum)
- Advanced Start-Up Circuit: Ensures quick and stable output voltage settling within 2 ms
Applications
- Portable Equipment
- Tablets and Smartphones
- Hard Disk Drives
- Sensor Modules
- Data Acquisition Systems
- Medical Equipment
- Test Equipment
Q & A
- What is the output voltage of the REF3318AIDBZR?
The output voltage of the REF3318AIDBZR is 1.8 V with an initial accuracy of ±0.15%. - What is the typical supply current of the REF3318AIDBZR?
The typical supply current is 3.9 μA. - What is the dropout voltage of the REF3318AIDBZR?
The dropout voltage is typically 110 mV. - What is the temperature drift of the REF3318AIDBZR?
The temperature drift is 30 ppm/°C. - What are the available packages for the REF3318AIDBZR?
The component is available in SC70-3, SOT-23-3, and UQFN-8 packages. - What is the maximum output current of the REF3318AIDBZR?
The maximum output current is ±5 mA. - What is the recommended capacitive load for the output of the REF3318AIDBZR?
The total capacitive load at the output must be between 0.1 μF to 10 μF to ensure output stability. - What is the operating temperature range of the REF3318AIDBZR?
The operating temperature range is from -40°C to 125°C. - What is the input voltage range for the REF3318AIDBZR?
The input voltage range is from VOUT + 0.2 V to 5.5 V. - How quickly does the REF3318AIDBZR settle to its output voltage after startup?
The output voltage settles within 2 ms after startup.
