The Texas Instruments LM1117MPX-1.8/NOPB is an 800 mA low-dropout regulator that delivers a fixed 1.8 V output in the SOT-223 package, supplied on tape and reel. The ±1% output accuracy and 1.2 V maximum dropout make it well suited to low-voltage core rails for FPGAs, DSPs and microcontrollers, with current-limit and thermal-shutdown protection built in.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | LM1117MPX-1.8/NOPB |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | LM1117 |
| Package / Case | SOT-223 |
| Mounting Type | Surface Mount |
| Operating Temperature | 0°C to +125°C |
| Power Supply | Up to 15 V input |
| Output Current | 800 mA |
| Output Voltage | Fixed 1.8 V |
| Dropout Voltage | 1.2 V max at 800 mA (1.1 V typical) |
| Output Accuracy | ±1% (fixed output) |
| Input Voltage | Up to 15 V |
| Protection | Current limit and thermal shutdown |
| Lifecycle Status | Active |
| Official Documentation | View official documentation |
Key Features
- 800 mA low-dropout linear regulator
- 1.2 V maximum dropout at full load
- Current-limit and thermal-shutdown protection
- Output tolerance ±1% for fixed versions
- Stable with 10 µF output capacitor
- Low quiescent current
Applications
- 1.8 V core and I/O rails
- FPGA and DSP power
- Low-voltage logic
- Embedded systems
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
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FAQ
What output voltage does the MPX-1.8 provide?
It provides a fixed 1.8 V output at up to 800 mA.
Why is the 1.8 V version useful?
It directly powers low-voltage FPGA, DSP and MCU core rails without an extra divider.
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