Overview
The LM4128CMF-3.3/NOPB is a precision micropower series voltage reference produced by Texas Instruments. This component is designed for space-critical applications and is available in a 5-pin SOT-23 surface-mount package. It is known for its high accuracy, low temperature coefficient, and low supply current, making it ideal for battery-powered solutions and other applications where precision voltage referencing is crucial.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer | Texas Instruments | |
| Package Type | SOT-23-5 | |
| Output Voltage | 3.3V | V |
| Output Voltage Initial Accuracy | ±0.1% (A Grade), ±0.5% (C Grade) | % |
| Temperature Coefficient | 75 ppm/°C (A Grade), 100 ppm/°C (C Grade) | ppm/°C |
| Supply Current | 60 µA | µA |
| Shutdown Current | 3 µA | µA |
| Output Current | Up to 20 mA | mA |
| Input Voltage Range | 3.7 V to 5.5 V | V |
| Operating Temperature Range | -40°C to 125°C | °C |
| Noise (0.1 Hz to 10 Hz) | 310 µVp-p | µVp-p |
Key Features
- High precision output voltage with initial accuracy of ±0.1% (A Grade) and ±0.5% (C Grade).
- Low temperature coefficient of 75 ppm/°C (A Grade) and 100 ppm/°C (C Grade).
- Low supply current of 60 µA and shutdown current of 3 µA.
- Enable pin allowing for shutdown mode.
- Up to 20 mA output current.
- Stable with low ESR ceramic capacitors.
- 5-pin SOT-23 surface-mount package.
- Operating temperature range of -40°C to 125°C.
Applications
- Battery-powered devices due to low quiescent current and low dropout voltage.
- Space-critical applications where precision voltage referencing is essential.
- Automotive systems, as some grades are AEC-Q100 Grade 1 qualified.
- General-purpose voltage referencing in various electronic systems.
Q & A
- What is the output voltage of the LM4128CMF-3.3/NOPB?
The output voltage is 3.3V.
- What is the initial accuracy of the LM4128CMF-3.3/NOPB?
The initial accuracy is ±0.1% for A Grade and ±0.5% for C Grade.
- What is the temperature coefficient of the LM4128CMF-3.3/NOPB?
The temperature coefficient is 75 ppm/°C for A Grade and 100 ppm/°C for C Grade.
- What is the supply current of the LM4128CMF-3.3/NOPB?
The supply current is 60 µA.
- Does the LM4128CMF-3.3/NOPB have a shutdown feature?
Yes, it has an enable pin that allows for a 3 µA shutdown mode.
- What is the maximum output current of the LM4128CMF-3.3/NOPB?
The maximum output current is up to 20 mA.
- What is the operating temperature range of the LM4128CMF-3.3/NOPB?
The operating temperature range is -40°C to 125°C.
- Is the LM4128CMF-3.3/NOPB RoHS compliant?
Yes, it is RoHS compliant.
- What package type does the LM4128CMF-3.3/NOPB come in?
The package type is SOT-23-5.
- What are some typical applications for the LM4128CMF-3.3/NOPB?
Typical applications include battery-powered devices, space-critical applications, and automotive systems).
