Texas Instruments LM1117MPX-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 | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223 |
| ROHS |  |
The LM1117MPX-ADJ/NOPB from Texas Instruments is a versatile adjustable linear regulator delivering up to 800mA. With an output range from 1.25V to 13.8V, it adapts to various design requirements. The low dropout voltage of 1.2V ensures efficient operation, while the SOT-223 package offers a compact footprint. Its 75dB PSRR at 120Hz provides excellent ripple rejection, making it suitable for noise-sensitive applications.
- Adjustable Output Flexibility: Output from 1.25V to 13.8V allows one part to serve multiple voltage rails, reducing inventory complexity.
- High Ripple Rejection: 75dB PSRR at 120Hz ensures clean power for analog and audio circuits, improving signal fidelity.
- Robust Current Capability: 800mA output supports a wide range of loads, from microcontrollers to small motors.
- Compact SOT-223 Package: Small footprint with good thermal dissipation, ideal for space-limited PCBs.
Adjustable Power Supply for Microcontrollers
Use the LM1117MPX-ADJ/NOPB to create a precise, adjustable supply rail (e.g., 3.3V or 5V) for MCU boards. Its 800mA current capability supports most microcontroller and peripheral loads, while the adjustable output allows fine-tuning for specific logic levels.
Battery-Powered Portable Devices
In battery-operated equipment, this LDO maintains a stable output as the battery voltage declines. The low dropout of 1.2V maximizes usable battery life by allowing operation until the battery approaches the output voltage plus dropout.
Post-Regulation for Switching Converters
Place the LM1117 after a DC-DC converter to reduce ripple and noise. With a PSRR of 75dB at 120Hz, it effectively attenuates low-frequency ripple, providing a clean supply for sensitive analog circuits.
FPGA and DSP Core Voltage Supply
FPGAs and DSPs often require a core voltage lower than the I/O voltage. The adjustable output (down to 1.25V) makes this LDO suitable for generating core voltages, with 800mA handling moderate digital loads.
Industrial Sensor Interface
For industrial sensors needing a stable excitation voltage, this regulator offers a low-noise, accurate output. The SOT-223 package with a standard pinout simplifies PCB layout in rugged industrial designs.
Audio and Precision Analog Circuits
The high PSRR at 120Hz makes this LDO ideal for audio preamplifiers and data converters, where power supply noise directly impacts signal integrity. The adjustable output allows optimization for specific op-amp supply voltages.
- Q: What is the output voltage of the LM1117MPX-ADJ/NOPB?
- A: This is an adjustable LDO regulator with an output voltage range from 1.25V up to 13.8V, set by an external resistor divider.
- Q: What is the maximum output current?
- A: The LM1117MPX-ADJ/NOPB can deliver 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, providing flexibility for various supply rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.2V at an 800mA load, ensuring efficient operation with moderate headroom.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA, which is suitable for applications where standby power is not the primary concern.
- Q: What package is available?
- A: This device is offered in a compact SOT-223 package, ideal for space-constrained PCB designs.
LM1117MPX-ADJ/NOPB.pdf
- Q: What is the output voltage of the LM1117MPX-ADJ/NOPB?
- A: This is an adjustable LDO regulator with an output voltage range from 1.25V up to 13.8V, set by an external resistor divider.
- Q: What is the maximum output current?
- A: The LM1117MPX-ADJ/NOPB can deliver 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, providing flexibility for various supply rails.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.2V at an 800mA load, ensuring efficient operation with moderate headroom.
- Q: What is the quiescent current?
- A: The quiescent current is 5 mA, which is suitable for applications where standby power is not the primary concern.
- Q: What package is available?
- A: This device is offered in a compact SOT-223 package, ideal for space-constrained PCB designs.
