Overview
The LM1117DTX-3.3/NOPB is a low dropout voltage regulator produced by Texas Instruments. This device is part of the LM1117 series, known for its high performance and reliability in voltage regulation. The LM1117DTX-3.3/NOPB is specifically designed to provide a fixed output voltage of 3.3V with a maximum output current of 800mA. It features a low dropout voltage of 1.2V at 800mA, making it suitable for a wide range of applications where efficient voltage regulation is critical.
Key Specifications
| Parameter | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LM1117DTX-3.3/NOPB |
| Package | TO-252-3 (DPak, 2 Leads + Tab, SC-63) |
| Output Voltage | 3.3V (Fixed) |
| Output Current | 800mA |
| Input Voltage | Up to 15V |
| Dropout Voltage | 1.2V @ 800mA |
| Line Regulation | 0.2% (Maximum) |
| Load Regulation | 0.4% (Maximum) |
| Operating Temperature | 0°C to +125°C |
| Current Limiting | Yes |
| Thermal Protection | Yes |
Key Features
- Low dropout voltage of 1.2V at 800mA
- High output current capability of up to 800mA
- Fixed output voltage of 3.3V
- Current limiting and thermal shutdown for protection
- Space-saving TO-252-3 package
- Line regulation of 0.2% (maximum) and load regulation of 0.4% (maximum)
- Zener trimmed band-gap reference for output voltage accuracy within ±1%
- Requires a minimum of 10-µF tantalum capacitor 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
Q & A
- What is the output voltage of the LM1117DTX-3.3/NOPB? The output voltage is fixed at 3.3V.
- What is the maximum output current of the LM1117DTX-3.3/NOPB? The maximum output current is 800mA.
- What is the dropout voltage of the LM1117DTX-3.3/NOPB at 800mA? The dropout voltage is 1.2V at 800mA.
- What are the key protection features of the LM1117DTX-3.3/NOPB? The device features current limiting and thermal shutdown.
- What is the operating temperature range of the LM1117DTX-3.3/NOPB? The operating temperature range is from 0°C to +125°C.
- What type of capacitor is recommended at the output for stability? A minimum of 10-µF tantalum capacitor is recommended.
- Is the LM1117DTX-3.3/NOPB RoHS compliant? Yes, it is RoHS compliant.
- What are some common applications of the LM1117DTX-3.3/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.
- What package type is the LM1117DTX-3.3/NOPB available in? It is available in the TO-252-3 package.
- Does the LM1117DTX-3.3/NOPB have adjustable output voltage options? No, the LM1117DTX-3.3/NOPB has a fixed output voltage of 3.3V, but the LM1117 series does offer adjustable versions.
