Overview
The REF3133AQDBZRQ1 is a precision, low-power voltage reference from Texas Instruments, part of the REF31xx-Q1 family. This component is designed for high accuracy and stability, making it suitable for a wide range of applications, particularly in automotive and portable electronics. The REF3133AQDBZRQ1 operates with a 3.3V output voltage and is packaged in a compact 3-pin SOT-23 package, which is ideal for space-constrained designs. It is AEC-Q100 qualified, ensuring reliability and performance in harsh environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.2934 to 3.3066 | V |
| Initial Accuracy | ±0.2% | % |
| Temperature Drift | 20 ppm/°C (max) from -40°C to +125°C | ppm/°C |
| Output Current | ±10 mA | mA |
| Dropout Voltage | 5 mV | mV |
| Quiescent Current | 100 µA (typ), 115 µA (max) | µA |
| Noise (0.1 Hz to 10 Hz) | 43 µVp-p | µVp-p |
| Noise (10 Hz to 10 kHz) | 63 µVRMS | µVRMS |
| Operating Temperature Range | -40°C to +125°C | °C |
| Package | 3-pin SOT-23 |
Key Features
- High Accuracy: ±0.2% maximum initial accuracy.
- Low Drift: 20 ppm/°C maximum temperature drift from -40°C to +125°C.
- Low Dropout Voltage: 5 mV, allowing operation with supplies close to the output voltage.
- Low Quiescent Current: 100 µA typical, 115 µA maximum.
- No Output Capacitor Required: Stable with any capacitive load.
- High Output Current Capability: Can source or sink up to ±10 mA.
- Low Noise: 43 µVp-p noise from 0.1 Hz to 10 Hz and 63 µVRMS from 10 Hz to 10 kHz.
- Compact Package: 3-pin SOT-23 package, ideal for space-constrained designs.
- AEC-Q100 Qualified: Ensures reliability and performance in automotive and harsh environments.
Applications
- Automotive Systems: HEV/EV powertrain systems, automotive battery management systems, inverter systems, electric power steering systems.
- Advanced Driver Assistance Systems (ADAS): Radar systems, night vision systems, dynamic spotlight, front camera.
- Infotainment Systems: MCU attached systems.
- Portable and Battery-Powered Equipment: Ideal for devices requiring low power consumption and high accuracy.
Q & A
- What is the output voltage of the REF3133AQDBZRQ1?
The output voltage of the REF3133AQDBZRQ1 is 3.3V, with an initial accuracy of ±0.2%.
- What is the temperature drift of the REF3133AQDBZRQ1?
The temperature drift is 20 ppm/°C maximum from -40°C to +125°C.
- What is the quiescent current of the REF3133AQDBZRQ1?
The quiescent current is 100 µA typical and 115 µA maximum.
- Does the REF3133AQDBZRQ1 require an output capacitor?
No, the REF3133AQDBZRQ1 does not require an output capacitor and is stable with any capacitive load.
- What is the maximum output current of the REF3133AQDBZRQ1?
The REF3133AQDBZRQ1 can source or sink up to ±10 mA.
- What is the noise performance of the REF3133AQDBZRQ1?
The noise is 43 µVp-p from 0.1 Hz to 10 Hz and 63 µVRMS from 10 Hz to 10 kHz.
- What package type is the REF3133AQDBZRQ1 available in?
The REF3133AQDBZRQ1 is available in a 3-pin SOT-23 package.
- Is the REF3133AQDBZRQ1 AEC-Q100 qualified?
Yes, the REF3133AQDBZRQ1 is AEC-Q100 qualified, ensuring reliability in automotive and harsh environments.
- What are some typical applications of the REF3133AQDBZRQ1?
Typical applications include automotive systems, ADAS, infotainment systems, and portable battery-powered equipment.
- What is the operating temperature range of the REF3133AQDBZRQ1?
The operating temperature range is -40°C to +125°C.
