Overview
The LM1117MPX-1.8/NOPB is a low-dropout linear voltage regulator produced by Texas Instruments. This regulator is designed to provide a stable output voltage of 1.8V with a maximum output current of 800mA. It is available in the space-saving SOT-223-4 package, making it suitable for a variety of applications where compact design is crucial. The LM1117 series is known for its high accuracy and reliability, featuring a Zener trimmed band-gap reference to ensure output voltage accuracy within ±1%.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM1117MPX-1.8/NOPB |
| Package | SOT-223-4 |
| Output Voltage | 1.8V (fixed) |
| Output Current | 800mA |
| Input Voltage Range | 3.2V to 15V |
| Dropout Voltage | 1.2V at 800mA |
| Line Regulation | 0.2% (maximum) |
| Load Regulation | 0.4% (maximum) |
| Temperature Range | 0°C to +125°C |
| Current Limiting | Yes |
| Thermal Protection | Yes |
Key Features
- Low dropout voltage of 1.2V at 800mA load current
- High accuracy output voltage within ±1%
- Space-saving SOT-223-4 package
- Current limiting and thermal shutdown protection
- Line regulation of 0.2% (maximum) and load regulation of 0.4% (maximum)
- Operating temperature range of 0°C to +125°C
- Zener trimmed band-gap reference for output voltage stability
- Requires a minimum of 10-µF tantalum capacitor at the output for improved transient response and stability
Applications
- AC drive power stage modules
- Merchant network and server power supplies
- Industrial AC/DC power supplies
- Ultrasound scanners
- Servo drive control modules
Q & A
- What is the output voltage of the LM1117MPX-1.8/NOPB?
The output voltage of the LM1117MPX-1.8/NOPB is 1.8V.
- What is the maximum output current of the LM1117MPX-1.8/NOPB?
The maximum output current is 800mA.
- What is the dropout voltage of the LM1117MPX-1.8/NOPB at 800mA load current?
The dropout voltage is 1.2V at 800mA load current.
- What is the operating temperature range of the LM1117MPX-1.8/NOPB?
The operating temperature range is 0°C to +125°C.
- Does the LM1117MPX-1.8/NOPB have current limiting and thermal protection?
Yes, it has both current limiting and thermal shutdown protection.
- What type of package does the LM1117MPX-1.8/NOPB come in?
The LM1117MPX-1.8/NOPB comes in the SOT-223-4 package.
- What is the line regulation of the LM1117MPX-1.8/NOPB?
The line regulation is 0.2% (maximum).
- What is the load regulation of the LM1117MPX-1.8/NOPB?
The load regulation is 0.4% (maximum).
- Is a capacitor required at the output of the LM1117MPX-1.8/NOPB?
Yes, a minimum of 10-µF tantalum capacitor is required at the output for improved transient response and stability.
- What are some common applications of the LM1117MPX-1.8/NOPB?
Common applications include AC drive power stage modules, merchant network and server power supplies, industrial AC/DC power supplies, ultrasound scanners, and servo drive control modules.
