The Texas Instruments LM1117IDTX-3.3/NOPB is the industrial-temperature version of the 800 mA LM1117 low-dropout regulator, delivering a fixed 3.3 V output in a TO-252 (DPAK) package. Its -40°C to +125°C operating range and ±1% output tolerance make it suitable for 3.3 V rails in industrial and field-deployed equipment, with current-limit and thermal-shutdown protection on chip.
Key Specifications
| Manufacturer | Texas Instruments |
| Exact Manufacturer Part Number | LM1117IDTX-3.3/NOPB |
| Product Category | Power Management – Voltage Regulators |
| Series / Family | LM1117 |
| Package / Case | TO-252 (DPAK) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C to +125°C |
| Power Supply | Up to 15 V input |
| Output Current | 800 mA |
| Output Voltage | Fixed 3.3 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
- Industrial 3.3 V rails
- Field and automation equipment
- MCU power supplies
- Embedded control
Sourcing
Availability, lead time, date code and commercial terms are subject to confirmation at the time of quotation.
Quality
CHIPER sources brand-new, unused components and provides quality inspection, shortage and long lead-time sourcing, and one-stop BOM procurement. Every part is verified before shipment.
FAQ
What does the I in LM1117IDTX indicate?
The I prefix denotes the industrial temperature grade from -40°C to +125°C.
Is the LM1117IDTX-3.3 fixed or adjustable?
It is fixed at 3.3 V; adjustable versions use the ADJ suffix.
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