onsemi LM1117MPX-18NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.09 | $1.09 |
| 15+ | $1.06 | $15.90 |
| 25+ | $1.04 | $26.00 |
| 50+ | $0.98 | $49.00 |
| 100+ | $0.86 | $86.00 |
| N+ | $0.17 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | onsemi |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 20V |
| Voltage - Output (Min/Fixed) | 1.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 1.2V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 10 mA |
| Current - Supply (Max) | - |
| PSRR | 70dB (120Hz) |
| Control Features | - |
| Protection Features | Over Current, Over Temperature |
| Operating Temperature | 0°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-4, TO-261AA |
| Supplier Device Package | SOT-223 |
| ROHS |
The LM1117MPX-18NOPB from onsemi is a robust low-dropout linear regulator providing a fixed 1.8V output at up to 800mA. With a dropout voltage of just 1.2V at full load and 70dB PSRR at 120Hz, it delivers clean, stable power for digital cores and memory rails. The SOT-223 package offers excellent thermal performance for demanding applications.
- High Current Capacity: 800mA output supports power-hungry digital loads like FPGAs and DSPs.
- Excellent Ripple Rejection: 70dB PSRR at 120Hz filters mains hum effectively.
- Thermal Efficiency: SOT-223 package dissipates heat well, ensuring reliability at high loads.
- Wide Input Range: Accepts inputs up to 15V, providing design flexibility.
FPGA Core Power
Modern FPGAs require 1.8V core supplies; the LM1117's 800mA capability and 70dB PSRR at 120Hz ensure stable operation during logic switching.
DDR Memory Termination
For DDR2/DDR3 VTT rails, this regulator provides clean 1.8V with low noise, improving memory signal integrity.
Set-Top Boxes
Powering 1.8V I/O and logic sections in STBs, the LM1117 handles moderate loads with thermal efficiency in SOT-223.
Networking Equipment
In routers and switches, the LDO supplies 1.8V to PHY and MAC chips, reducing power supply induced jitter.
Industrial Sensors
For 1.8V digital cores in smart sensors, this regulator offers reliable performance over -40°C to 125°C.
Consumer Audio
Providing 1.8V to DSPs in soundbars, the high PSRR minimizes hum from rectified mains.
- Q: What is the output voltage of the LM1117MPX-18NOPB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.8V up to 15V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10mA.
- Q: What package is available?
- A: It is available in a SOT-223 package.
- Q: What is the output voltage of the LM1117MPX-18NOPB?
- A: The fixed output voltage is 1.8V.
- Q: What is the maximum output current?
- A: It can deliver up to 800mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 1.8V up to 15V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 1.2V at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 10mA.
- Q: What package is available?
- A: It is available in a SOT-223 package.

LM1117MPX-18NOPB.pdf