Overview
The LM1117T-3.3/NOPB is a low dropout voltage regulator produced by Texas Instruments. This component is part of the LM1117 series, known for its high performance and reliability in various electronic systems. The LM1117T-3.3/NOPB is specifically designed to provide a fixed output voltage of 3.3V, making it suitable for a wide range of applications that require stable and efficient voltage regulation.
Key Specifications
| Parameter | Description |
|---|---|
| Output Voltage | 3.3V (Fixed) |
| Output Current | 800mA |
| Dropout Voltage | 1.2V at 800mA |
| Line Regulation | 0.2% (Max) |
| Load Regulation | 0.4% (Max) |
| Temperature Range | 0°C to 125°C |
| Package | TO-220 |
| Thermal Protection | Current limiting and thermal shutdown |
| Output Noise | 75dB@(120Hz) |
Key Features
- Current limiting and thermal shutdown for enhanced reliability
- Zener trimmed bandgap reference for output voltage accuracy within ±1%
- Space-saving TO-220 package
- High efficiency with low dropout voltage
- Minimum 10µF tantalum capacitor required at the output for improved transient response and stability
- Line regulation of 0.2% (Max) and load regulation of 0.4% (Max)
Applications
- AC drive power stage modules
- Merchant network and server power supplies
- Industrial AC/DC systems
- Ultrasound scanners
- Servo drive control modules
- Post regulator for switching DC/DC converters
- High-efficiency linear regulators
- Battery chargers and battery-powered instrumentation
Q & A
- What is the output voltage of the LM1117T-3.3/NOPB?
The output voltage is fixed at 3.3V. - What is the maximum output current of the LM1117T-3.3/NOPB?
The maximum output current is 800mA. - What is the dropout voltage of the LM1117T-3.3/NOPB at 800mA load current?
The dropout voltage is 1.2V at 800mA load current. - What are the key protection features of the LM1117T-3.3/NOPB?
The key protection features include current limiting and thermal shutdown. - What is the recommended output capacitor for the LM1117T-3.3/NOPB?
A minimum of 10µF tantalum capacitor is recommended at the output. - What are the typical applications of the LM1117T-3.3/NOPB?
Typical applications include AC drive power stage modules, merchant network and server power supplies, industrial AC/DC systems, and more. - What is the temperature range for the LM1117T-3.3/NOPB?
The temperature range is from 0°C to 125°C. - What package type is the LM1117T-3.3/NOPB available in?
The component is available in the TO-220 package. - How accurate is the output voltage of the LM1117T-3.3/NOPB?
The output voltage accuracy is within ±1% due to the zener trimmed bandgap reference. - What is the line regulation of the LM1117T-3.3/NOPB?
The line regulation is 0.2% (Max).
