Overview
The LM1117IDTX-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. The LM1117IDTX-3.3/NOPB specifically provides a fixed output voltage of 3.3V and can handle up to 800 mA of load current. It features a dropout voltage of 1.2V at 800 mA, making it suitable for a variety of applications requiring stable and efficient voltage regulation.
Key Specifications
| Parameter | Value |
|---|---|
| Output Voltage | 3.3 V |
| Output Current | 800 mA |
| Dropout Voltage | 1.2 V at 800 mA |
| Line Regulation | 0.2% (maximum) |
| Load Regulation | 0.4% (maximum) |
| Operating Temperature Range | –40°C to +125°C (LM1117I) |
| Package Type | TO-252 (NDP), 3 pins |
| Quiescent Current | 5 mA (typical) |
| Thermal Protection | Yes, thermal shutdown |
| Current Limiting | Yes, up to 1500 mA |
Key Features
- Low dropout voltage of 1.2 V at 800 mA
- Available in fixed output voltages (1.8 V, 2.5 V, 3.3 V, 5 V) and adjustable versions
- Space-saving SOT-223 and WSON packages
- Current limiting and thermal protection
- High accuracy output voltage with ±1% tolerance
- Minimum 10-µF tantalum capacitor required at the output for stability
Applications
- AC drive power stage modules
- Merchant network and server power supplies
- Industrial AC/DC power supplies
- Ultrasound scanners
- Servo drive control modules
- Post-regulator for switching DC/DC converters
- Battery chargers and battery-powered instrumentation
Q & A
- What is the output voltage of the LM1117IDTX-3.3/NOPB? The output voltage is 3.3 V.
- What is the maximum output current of the LM1117IDTX-3.3/NOPB? The maximum output current is 800 mA.
- What is the dropout voltage of the LM1117IDTX-3.3/NOPB at 800 mA? The dropout voltage is 1.2 V at 800 mA.
- Does the LM1117IDTX-3.3/NOPB have thermal protection? Yes, it includes thermal shutdown.
- What is the operating temperature range of the LM1117IDTX-3.3/NOPB? The operating temperature range is –40°C to +125°C.
- What type of package does the LM1117IDTX-3.3/NOPB come in? It comes in a TO-252 (NDP) package with 3 pins.
- Is current limiting a feature of the LM1117IDTX-3.3/NOPB? Yes, it includes current limiting up to 1500 mA.
- What is the recommended capacitor value for the output to ensure stability? A minimum of 10-µF tantalum capacitor is recommended.
- What are some common applications of the LM1117IDTX-3.3/NOPB? Common applications include AC drive power stage modules, industrial AC/DC power supplies, and servo drive control modules.
- Is the LM1117IDTX-3.3/NOPB available in adjustable versions? Yes, the LM1117 series includes adjustable versions, but the LM1117IDTX-3.3/NOPB is a fixed output version.
