Overview
The LM4120AIM5-1.8/NOPB is a precision low-power, low dropout bandgap voltage reference produced by Texas Instruments. This device is designed to provide a stable voltage reference with high accuracy and low power consumption, making it ideal for a variety of applications including battery-powered and portable devices. The LM4120 series offers multiple voltage options and comes in a compact 5-pin SOT-23 package, enhancing its versatility and ease of integration into various systems.
Key Specifications
| Parameter | Description |
|---|---|
| Output Voltage | 1.8V ± 0.2% |
| Output Current | Up to 5 mA (source and sink capability) |
| Input Voltage Range | 2 V to 12 V |
| Supply Current | 160 µA (typical), < 2 µA in power-down mode |
| Temperature Coefficient | 50 ppm/°C |
| Operating Temperature Range | -40°C to 85°C (industrial), -40°C to 125°C (extended, contact TI for full specs) |
| Package | 5-pin SOT-23 |
| Dropout Voltage | 120 mV (typical at 1 mA) |
| Line Regulation | 0.0007% to 0.01%/V (depending on conditions) |
| Load Regulation | 0.01% to 0.17%/mA (depending on conditions) |
Key Features
- Precision low-power, low dropout bandgap voltage reference
- High output voltage accuracy: ±0.2% for grade A devices
- Low supply current: 160 µA (typical)
- Low dropout voltage: 120 mV (typical at 1 mA)
- Source and sink current output capability: ±5 mA
- Enable pin for power-down mode
- Compact 5-pin SOT-23 package
- Industrial temperature range: -40°C to 85°C, with extended range options
Applications
- Instrumentation and Process Control
- Automotive and Industrial Systems
- Test Equipment
- Data Acquisition Systems
- Precision Regulators
- Battery Chargers
- Base Stations and Communications
- Medical Equipment
Q & A
- What is the output voltage of the LM4120AIM5-1.8/NOPB? The output voltage is 1.8V with an accuracy of ±0.2%.
- What is the maximum output current of the LM4120AIM5-1.8/NOPB? The device can source and sink up to 5 mA of current.
- What is the input voltage range for the LM4120AIM5-1.8/NOPB? The input voltage range is from 2 V to 12 V.
- How much current does the LM4120AIM5-1.8/NOPB consume in normal operation? The device consumes 160 µA of supply current (typical).
- What is the temperature coefficient of the LM4120AIM5-1.8/NOPB? The temperature coefficient is 50 ppm/°C.
- In what package is the LM4120AIM5-1.8/NOPB available? The device is available in a 5-pin SOT-23 package.
- What is the dropout voltage of the LM4120AIM5-1.8/NOPB? The dropout voltage is typically 120 mV at 1 mA of load current.
- Does the LM4120AIM5-1.8/NOPB have a power-down mode? Yes, the device has an enable pin that allows it to enter a power-down mode where the current drops to less than 2 µA.
- What are some common applications for the LM4120AIM5-1.8/NOPB? Common applications include instrumentation, automotive and industrial systems, test equipment, data acquisition systems, precision regulators, battery chargers, base stations, communications, and medical equipment.
- Is the LM4120AIM5-1.8/NOPB RoHS compliant? Yes, the device is RoHS compliant.
