Overview
The LM4132BMF-3.3/NOPB, produced by Texas Instruments, is a precision low dropout voltage reference in a SOT-23 package. This device is part of the LM4132 family, which offers high accuracy and stability comparable to laser-trimmed bipolar references but in cost-effective CMOS technology. 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 ideal for applications requiring precise voltage regulation.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Output Voltage (VOUT) | 3.3 | 3.3 | 3.3 | V |
| Output Voltage Initial Accuracy (A Grade) | -0.05% | 0% | 0.05% | % |
| Temperature Coefficient (A Grade) | 10 | - | 20 | ppm/°C |
| Input Voltage Range | VREF + 400 mV | - | 5.5 V | V |
| Dropout Voltage (ILOAD = 10 mA) | 175 | - | 400 | mV |
| Supply Current (IQ) | 60 | - | 100 | µA |
| Supply Current in Shutdown (IQ_SD) | 3 | - | 7 | µA |
| Line Regulation (ΔVREF/ΔVIN) | 85 | - | - | ppm/V |
| Load Regulation (ΔVREF/ΔILOAD) | 25 | - | 120 | ppm/mA |
| Long-term Stability (1000 Hrs) | 50 | - | - | ppm |
| Thermal Hysteresis | 75 | - | - | ppm |
| Output Noise Voltage (0.1 Hz to 10 Hz) | 310 | - | - | µVPP |
| Short-circuit Current (ISC) | 75 | - | - | mA |
| Enable Pin Minimum High Input Level (VIH) | 65% (VIN) | - | - | V |
| Enable Pin Maximum Low Input Level (VIL) | 35% (VIN) | - | - | V |
Key Features
- Precision voltage reference with initial accuracy as low as 0.05% (A Grade) and a temperature coefficient of 10 ppm/°C or less.
- Low dropout voltage of 400 mV at 10 mA load current.
- Low quiescent current of 60 µA and low supply current in shutdown of 3 µA.
- No output capacitor or buffer amplifier required.
- Stable with low-ESR ceramic capacitors.
- Available in five grades (A, B, C, D, E) for greater flexibility.
- SOT-23 package, ideal for space-critical applications.
- Custom voltage options available from 1.8 V to 4.096 V.
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 output voltage of the LM4132BMF-3.3/NOPB?
The output voltage of the LM4132BMF-3.3/NOPB is 3.3 V.
- What is the initial accuracy of the A Grade LM4132?
The initial accuracy of the A Grade LM4132 is 0.05%.
- What is the temperature coefficient of the A Grade LM4132?
The temperature coefficient of the A Grade LM4132 is 10 ppm/°C or less.
- What is the dropout voltage of the LM4132 at 10 mA load current?
The dropout voltage of the LM4132 at 10 mA load current is between 175 mV and 400 mV.
- Does the LM4132 require an output capacitor or buffer amplifier?
No, the LM4132 does not require an output capacitor or buffer amplifier.
- What is the quiescent current of the LM4132?
The quiescent current of the LM4132 is 60 µA.
- What is the supply current in shutdown mode for the LM4132?
The supply current in shutdown mode for the LM4132 is 3 µA.
- What are the typical applications of the LM4132?
The LM4132 is used in instrumentation, test equipment, data acquisition systems, base stations, servo systems, portable battery-powered equipment, automotive and industrial applications, precision regulators, battery chargers, communications, and medical equipment.
- What package type is the LM4132 available in?
The LM4132 is available in a SOT-23 package.
- Can the LM4132 be customized for different output voltages?
Yes, custom voltage options are available from 1.8 V to 4.096 V.
