Overview
The LM4132BMF-3.0/NOPB, produced by Texas Instruments, is a precision low dropout voltage reference designed in cost-effective CMOS technology. This device is part of the LM4132 family, which offers performance comparable to the best laser-trimmed bipolar references. The LM4132 uses EEPROM registers to correct for curvature, temperature coefficient, and accuracy, allowing for package-level programming to overcome assembly shifts. This makes it highly accurate and stable across various operating conditions.
The LM4132BMF-3.0/NOPB is particularly suited for space-critical applications due to its SOT-23 packaging and does not require an output capacitor or buffer amplifier, making it ideal for battery-powered solutions.
Key Specifications
| Parameter | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Output Voltage Initial Accuracy (B Grade) | TJ = 25°C, VIN = 5 V, ILOAD = 0 mA | -0.1% | 0% | 0.1% | % |
| Temperature Coefficient | 0°C ≤ TJ ≤ 85°C | 20 | - | 20 | ppm/°C |
| Supply Current | -40°C ≤ TJ ≤ 125°C | 60 | - | 100 | µA |
| Line Regulation | VREF + 400 mV ≤ VIN ≤ 5.5 V | 85 | - | - | ppm/V |
| Load Regulation | 0 mA ≤ ILOAD ≤ 25 mA | 25 | - | 120 | ppm/mA |
| Dropout Voltage | ILOAD = 10 mA | 175 | - | 400 | mV |
| Output Noise Voltage | 0.1 Hz to 10 Hz | 310 | - | - | µVPP |
| Short-Circuit Current | -40°C ≤ TJ ≤ 125°C | - | - | 75 | mA |
| Enable Pin Maximum Low Input Level | -40°C ≤ TJ ≤ 125°C | - | - | 35% (VIN) | V |
| Enable Pin Minimum High Input Level | -40°C ≤ TJ ≤ 125°C | - | - | 65% (VIN) | V |
Key Features
- High accuracy with initial accuracy as low as 0.05% (A Grade) and a temperature coefficient of 10 ppm/°C or less.
- No output capacitor or buffer amplifier required.
- Low dropout voltage of 400 mV.
- Low quiescent current of 60 µA.
- Stable with low-ESR ceramic capacitors.
- Custom voltage options available from 1.8 V to 4.096 V.
- SOT-23 packaging suitable for space-critical applications.
- Available in five grades (A, B, C, D, E) for greater flexibility.
Applications
- Instrumentation and Process Control
- Test Equipment
- Data Acquisition Systems
- Base Stations
- Servo Systems
- Portable, Battery-Powered Equipment
- Automotive and Industrial
- Precision Regulators
- Battery Chargers
- Communications
- Medical Equipment
Q & A
- What is the typical output voltage accuracy of the LM4132BMF-3.0/NOPB?
The typical output voltage accuracy for the B Grade is ±0.1% at 25°C.
- What is the dropout voltage of the LM4132BMF-3.0/NOPB?
The dropout voltage is 400 mV at an output current of 10 mA.
- Does the LM4132BMF-3.0/NOPB require an output capacitor or buffer amplifier?
No, it does not require an output capacitor or buffer amplifier.
- What is the quiescent current of the LM4132BMF-3.0/NOPB?
The quiescent current is 60 µA.
- What are the available output voltage options for the LM4132 family?
The available output voltage options include 1.8 V, 2.048 V, 2.5 V, 3 V, 3.3 V, and 4.096 V, with custom options available between 1.8 V and 4.096 V.
- What is the temperature coefficient of the LM4132BMF-3.0/NOPB?
The temperature coefficient for the B Grade is 20 ppm/°C over the temperature range of -40°C to 125°C.
- What is the maximum short-circuit current of the LM4132BMF-3.0/NOPB?
The maximum short-circuit current is 75 mA.
- What are the typical applications of the LM4132BMF-3.0/NOPB?
Typical applications include instrumentation, test equipment, data acquisition systems, base stations, servo systems, portable battery-powered equipment, automotive and industrial systems, precision regulators, battery chargers, communications, and medical equipment.
- What is the package type of the LM4132BMF-3.0/NOPB?
The package type is SOT-23.
- How many grades are available for the LM4132 family?
The LM4132 family is available in five grades: A, B, C, D, and E.
