Overview
The LM1117IDT-3.3/NOPB is a low dropout voltage regulator produced by Texas Instruments. This regulator is part of the LM1117 series, known for its high performance and reliability. It offers a fixed output voltage of 3.3V and can supply up to 800mA of current. The LM1117IDT-3.3/NOPB features a dropout voltage of 1.2V at 800mA, making it suitable for a wide range of applications where low voltage drop is crucial. The device is available in a space-saving TO-252 (NDP) package with 3 pins, and it includes current limiting and thermal protection to ensure safe operation.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Voltage | 3.3 | V |
| Maximum Output Current | 800 | mA |
| Dropout Voltage | 1.2 | V |
| Line Regulation | 0.2% | |
| Load Regulation | 0.4% | |
| Operating Temperature Range | -40°C to 125°C | |
| Package Type | TO-252 (NDP) | |
| Number of Pins | 3 |
Key Features
- Available in fixed output voltage of 3.3V, with other versions offering 1.8V, 2.5V, 5V, and adjustable output options.
- Space-saving SOT-223 and WSON packages, with the LM1117IDT-3.3/NOPB specifically in a TO-252 (NDP) package.
- Current limiting and thermal shutdown for protection.
- Output current up to 800mA.
- Line regulation of 0.2% (maximum) and load regulation of 0.4% (maximum).
- Zener trimmed bandgap reference for output voltage accuracy to within ±1%.
- Minimum of 10µF tantalum capacitor required 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.
- Post regulator for switching DC/DC converters.
- Battery chargers and battery-powered instrumentation.
Q & A
- What is the maximum output current of the LM1117IDT-3.3/NOPB?
The maximum output current is 800mA. - What is the dropout voltage of the LM1117IDT-3.3/NOPB at 800mA load current?
The dropout voltage is 1.2V. - What is the operating temperature range of the LM1117IDT-3.3/NOPB?
The operating temperature range is -40°C to 125°C. - What type of package does the LM1117IDT-3.3/NOPB come in?
The LM1117IDT-3.3/NOPB comes in a TO-252 (NDP) package. - Does the LM1117IDT-3.3/NOPB have built-in protection features?
Yes, it includes current limiting and thermal shutdown. - What is the line regulation of the LM1117IDT-3.3/NOPB?
The line regulation is 0.2% (maximum). - What is the load regulation of the LM1117IDT-3.3/NOPB?
The load regulation is 0.4% (maximum). - Is the LM1117IDT-3.3/NOPB available in other output voltages?
Yes, the LM1117 series is available in 1.8V, 2.5V, 5V, and adjustable versions. - What type of capacitor is recommended for the output of the LM1117IDT-3.3/NOPB?
A minimum of 10µF tantalum capacitor is recommended. - What are some common applications of the LM1117IDT-3.3/NOPB?
Common applications include AC drive power stage modules, industrial AC/DC power supplies, ultrasound scanners, and servo drive control modules.
