Overview
The LM1117IMPX-5.0 is a low-dropout linear voltage regulator produced by National Semiconductor, now part of Texas Instruments. This regulator is designed to provide a stable output voltage of 5.0V with a maximum output current of 800 mA. It is part of the LM1117 series, which offers both fixed and adjustable output voltage options. The LM1117IMPX-5.0 is known for its high accuracy, low dropout voltage, and robust protection features, making it suitable for a wide range of applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 5.0 | V |
| Output Current | 800 | mA |
| Dropout Voltage | 1.2 | V (at 800 mA) |
| Line Regulation | 0.2% | |
| Load Regulation | 0.4% | |
| Temperature Range | -40°C to 125°C | |
| Quiescent Current | 5-15 | mA |
| Ripple Rejection | 60 dB | |
| Package Type | SOT-223, TO-220, etc. |
Key Features
- Available in fixed 5.0V output voltage.
- Low dropout voltage of 1.2V at 800 mA.
- Current limiting and thermal shutdown protection.
- High accuracy output voltage with ±1% tolerance.
- Space-saving SOT-223 and other package options.
- Minimum of 10-µF tantalum capacitor required at the output for stability.
- Zener trimmed bandgap reference for output voltage accuracy.
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 maximum output current of the LM1117IMPX-5.0?
The maximum output current is 800 mA. - What is the dropout voltage of the LM1117IMPX-5.0 at 800 mA?
The dropout voltage is 1.2 V at 800 mA. - What are the available package types for the LM1117IMPX-5.0?
The available package types include SOT-223, TO-220, and others. - What is the temperature range for the LM1117IMPX-5.0?
The temperature range is -40°C to 125°C. - Does the LM1117IMPX-5.0 have built-in protection features?
Yes, it includes current limiting and thermal shutdown protection. - What is the recommended output capacitor for stability?
A minimum of 10-µF tantalum capacitor is recommended at the output. - How accurate is the output voltage of the LM1117IMPX-5.0?
The output voltage accuracy is within ±1%. - What are some common applications of the LM1117IMPX-5.0?
Common applications include AC drive power stage modules, industrial AC/DC power supplies, and servo drive control modules. - Is the LM1117IMPX-5.0 still in production?
No, the LM1117IMPX-5.0 is obsolete and no longer manufactured. - What are some substitutes for the LM1117IMPX-5.0?
Substitutes include the LM1117IMP-5.0 and other parametric equivalents.
