Overview
The LM4128AMF-1.8/NOPB is a precision voltage reference IC manufactured by Texas Instruments. This product is designed to provide a stable and accurate 1.8V output voltage, making it ideal for applications requiring high precision and low noise. The LM4128AMF-1.8/NOPB is part of the LM4128 series, which is known for its low dropout voltage, low quiescent current, and excellent temperature stability. This model is particularly suited for use in industrial, automotive, and consumer electronics where reliable voltage references are critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 1.8 | V | ±0.2% initial accuracy |
| Output Current | 15 | mA | Maximum |
| Dropout Voltage | 200 | mV | Typical |
| Quiescent Current | 120 | µA | Typical |
| Operating Temperature Range | -40 to 125 | °C | Industrial grade |
| Package | SOT-23 | - | 5-pin |
| Temperature Coefficient | 50 | ppm/°C | Typical |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.05 | %/mA | Typical |
| Long-Term Stability | 50 | ppm/1000h | Typical |
Key Features
- High Precision: Provides a stable 1.8V output with ±0.2% initial accuracy.
- Low Dropout Voltage: Ensures efficient operation even with low input voltages.
- Low Quiescent Current: Reduces power consumption, making it suitable for battery-powered applications.
- Wide Temperature Range: Operates reliably in extreme temperatures from -40°C to 125°C.
- Compact Package: Available in a small SOT-23 package, ideal for space-constrained designs.
Applications
The LM4128AMF-1.8/NOPB is widely used in applications requiring precise voltage references. Its key applications include:
- Industrial Automation: Used in control systems and sensors where stable voltage references are essential.
- Automotive Electronics: Ideal for power management and sensor calibration in vehicles.
- Consumer Electronics: Suitable for portable devices, wearables, and other battery-powered gadgets.
- Medical Devices: Ensures accurate voltage levels in diagnostic and monitoring equipment.
- Test and Measurement: Provides reliable voltage references for precision instruments.
Q & A
1. What is the output voltage of the LM4128AMF-1.8/NOPB?
The output voltage is 1.8V with ±0.2% initial accuracy.
2. What is the maximum output current it can handle?
The maximum output current is 15mA.
3. What is the dropout voltage of this IC?
The typical dropout voltage is 200mV.
4. Is the LM4128AMF-1.8/NOPB suitable for automotive applications?
Yes, it is designed to operate reliably in automotive environments.
5. What is the operating temperature range?
It operates in a temperature range of -40°C to 125°C.
6. What package does the LM4128AMF-1.8/NOPB come in?
It is available in a 5-pin SOT-23 package.
7. How does it perform in terms of temperature stability?
It has a typical temperature coefficient of 50ppm/°C.
8. Can it be used in battery-powered devices?
Yes, its low quiescent current makes it ideal for battery-powered applications.
9. What is the long-term stability of this voltage reference?
The long-term stability is typically 50ppm/1000 hours.
10. Is the LM4128AMF-1.8/NOPB suitable for medical devices?
Yes, its precision and stability make it suitable for medical applications.
