Texas Instruments LM1117IMPX-ADJ/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.96 | $0.96 |
| 15+ | $0.93 | $13.95 |
| 25+ | $0.91 | $22.75 |
| 50+ | $0.86 | $43.00 |
| 100+ | $0.76 | $76.00 |
| N+ | $0.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Adjustable |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 1.25V |
| Voltage - Output (Max) | 13.8V |
| Voltage Dropout (Max) | 1.2V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 5 mA |
| Current - Supply (Max) | 10 mA |
| PSRR | 75dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223-4 |
| ROHS |
The LM1117IMPX-ADJ/NOPB is a low dropout linear regulator from Texas Instruments, offering an adjustable output from 1.25V to 13.8V. It delivers up to 800mA of continuous current with a dropout voltage of just 1.2V, making it ideal for battery-powered and high-efficiency applications. The device features a low quiescent current of 5mA and excellent PSRR of 75dB at 120Hz, ensuring clean and stable output. Housed in a compact SOT-223-4 package, it is suitable for space-constrained designs.
- High Efficiency: Low 1.2V dropout voltage maximizes battery life by allowing operation closer to the input supply rail.
- Design Flexibility: Adjustable output from 1.25V to 13.8V supports a wide range of applications with a single part number.
- Clean Power Delivery: 75dB PSRR at 120Hz effectively filters ripple, ensuring stable operation for sensitive analog circuits.
- Robust Thermal Performance: SOT-223-4 package with exposed pad dissipates heat efficiently, enabling full 800mA output.
Adjustable Power Supply for Microcontrollers
Use the adjustable output (1.25V to 13.8V) to power MCUs, FPGAs, or analog circuits requiring a precise, non-standard voltage. The 800mA current capability supports most digital loads.
Battery-Powered Equipment
With a low 1.2V dropout, this LDO maximizes battery life by allowing operation close to the battery's end-of-discharge voltage. Ideal for portable instruments and handheld devices.
Post-Regulation for Switching Converters
Place after a DC-DC converter to reduce output ripple and noise. The 75dB PSRR at 120Hz effectively attenuates low-frequency switching artifacts, providing clean analog supply rails.
Precision Analog Front-Ends
Power op-amps, ADCs, and DACs with a stable, low-noise supply. The adjustable output lets you optimize the rail for maximum dynamic range and accuracy.
Industrial Sensor Interfaces
Provide a regulated 3.3V or 5V rail for sensors and transducers in industrial environments. The SOT-223 package with thermal pad ensures reliable heat dissipation up to 800mA.
Automotive Infotainment Systems
Regulate power for audio codecs, display drivers, and communication modules. The wide input range and robust thermal performance make it suitable for 12V automotive buses.
- Q: What is the output voltage range of the LM1117IMPX-ADJ/NOPB?
- A: The adjustable version outputs 1.25V to 13.8V, set by an external resistor divider.
- Q: What is the maximum output current?
- A: It delivers up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.25V up to 15V (absolute maximum).
- Q: What is the dropout voltage?
- A: Dropout voltage is typically 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.
- Q: What is the output voltage range of the LM1117IMPX-ADJ/NOPB?
- A: The adjustable version outputs 1.25V to 13.8V, set by an external resistor divider.
- Q: What is the maximum output current?
- A: It delivers up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.25V up to 15V (absolute maximum).
- Q: What is the dropout voltage?
- A: Dropout voltage is typically 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 5mA.
- Q: What package is available?
- A: It comes in a SOT-223-4 package.

LM1117IMPX-ADJ/NOPB.pdf