Overview
The REF3325AIDBZTG4 is a part of the REF33xx family of low-power, precision band-gap voltage references produced by Texas Instruments. This component is designed for applications requiring extremely low dropout voltage, high initial voltage accuracy, and high output current. Available in tiny SC70-3 and SOT-23-3 packages, it is ideal for a wide variety of portable and battery-powered applications. The REF3325AIDBZTG4 operates over a wide temperature range of –40°C to +125°C, making it versatile for various environments.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage | 2.475 | 2.5 | 2.525 | V |
| Initial Accuracy | -0.15% | 0.15% | % | |
| Temperature Drift | 30 ppm/°C | ppm/°C | ||
| Supply Current | 3.9 μA | 5 μA | μA | |
| Dropout Voltage | 110 mV | 180 mV | mV | |
| Output Noise (0.1 Hz to 10 Hz) | 70 μVPP | μVPP | ||
| Output Current | ±5 mA | mA | ||
| Operating Temperature Range | -40°C | 125°C | °C |
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)
- Low Output Noise: 70 μVPP (0.1 Hz to 10 Hz)
- Advanced Start-Up Circuit: Fast start-up time, almost independent of load
Applications
- Portable Equipment
- Tablets and Smartphones
- Hard Disk Drives
- Sensor Modules
- Data Acquisition Systems
- Medical Equipment
- Test Equipment
Q & A
- What is the typical supply current of the REF3325AIDBZTG4?
The typical supply current is 3.9 μA.
- What is the maximum dropout voltage for the REF3325AIDBZTG4?
The maximum dropout voltage is 180 mV.
- What is the output voltage accuracy of the REF3325AIDBZTG4?
The output voltage accuracy is ±0.15%.
- What is the temperature drift of the REF3325AIDBZTG4?
The temperature drift is 30 ppm/°C.
- What is the maximum output current of the REF3325AIDBZTG4?
The maximum output current is ±5 mA.
- What are the recommended capacitive loads for the REF3325AIDBZTG4?
The total capacitive load at the output must be between 0.1 μF to 10 μF.
- What is the operating temperature range of the REF3325AIDBZTG4?
The operating temperature range is –40°C to +125°C.
- What are some common applications for the REF3325AIDBZTG4?
Common applications include portable equipment, tablets and smartphones, hard disk drives, sensor modules, data acquisition systems, medical equipment, and test equipment.
- What package options are available for the REF3325AIDBZTG4?
The component is available in SC70-3 and SOT-23-3 packages.
- How does the start-up circuit of the REF3325AIDBZTG4 work?
The start-up circuit forces the output voltage using a current boost circuit until the preset voltage is reached, then switches to the second stage of output circuitry to precisely set the output voltage.
