Overview
The LM4120AIM5-3.3 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 operates with input voltages ranging from 2 V to 12 V and consumes a typical supply current of 160 µA. It features an enable pin for power-down mode, where the device current drops to less than 2 µA. The device is available in two grades (A and Standard) and offers seven different output voltage options.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Output Voltage | 3.3 V | |
| Output Current | ±5 mA | |
| Input Voltage Range | 2 V to 12 V | |
| Supply Current | 160 µA (typical) | |
| Power-Down Current | < 2 µA | |
| Initial Accuracy | ±0.2% (Grade A), ±0.5% (Standard) | |
| Temperature Coefficient | 50 ppm/°C | −40°C to 125°C |
| Dropout Voltage | 120 mV (typical at 1 mA) | |
| Package | 5-pin SOT-23 | |
| Operating Temperature Range | −40°C to 85°C |
Key Features
- Small SOT23-5 package
- Low dropout voltage: 120 mV typical at 1 mA
- High output voltage accuracy: 0.2% (Grade A), 0.5% (Standard)
- Source and sink current output: ±5 mA
- Low supply current: 160 µA typical
- Low temperature coefficient: 50 ppm/°C
- Enable pin for power-down mode
- Fixed output voltages: 1.8, 2.048, 2.5, 3, 3.3, 4.096, and 5 V
- Industrial temperature range: −40°C to 85°C
Applications
- Battery-Powered Equipment
- 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 LM4120AIM5-3.3? The output voltage of the LM4120AIM5-3.3 is 3.3 V.
- What is the maximum output current of the LM4120? The maximum output current is ±5 mA.
- What is the input voltage range for the LM4120? The input voltage range is from 2 V to 12 V.
- How much supply current does the LM4120 consume? The LM4120 consumes a typical supply current of 160 µA.
- What is the power-down current of the LM4120? The power-down current is less than 2 µA.
- What are the initial accuracy and temperature coefficient of the LM4120? The initial accuracy is ±0.2% (Grade A) and ±0.5% (Standard), with a temperature coefficient of 50 ppm/°C.
- What package type is the LM4120 available in? The LM4120 is available in a 5-pin SOT-23 package.
- What is the operating temperature range of the LM4120? The operating temperature range is −40°C to 85°C.
- Does the LM4120 have an enable pin? Yes, the LM4120 has an enable pin for power-down mode.
- What are some common applications of the LM4120? Common applications include battery-powered equipment, instrumentation, automotive and industrial systems, test equipment, and medical equipment.
