Texas Instruments LM1117IDT-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.61 | $1.61 |
| 15+ | $1.55 | $23.25 |
| 25+ | $1.52 | $38.00 |
| 50+ | $1.44 | $72.00 |
| 100+ | $1.27 | $127.00 |
| N+ | $0.25 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | LM1117-3.3 |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| 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-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-252-3 |
| ROHS |
The LM1117IDT-3.3/NOPB is a low dropout linear regulator from Texas Instruments, offering a fixed 3.3V output with up to 800mA of current. Its low 1.2V dropout and 5mA quiescent current make it efficient for battery and industrial applications. The TO-252-3 package ensures easy thermal management, while 75dB PSRR at 120Hz provides clean power for sensitive electronics.
- High Output Current: 800mA capability supports a wide range of loads, from microcontrollers to small motors.
- Low Dropout Voltage: 1.2V dropout allows operation from lower input voltages, improving system efficiency.
- Excellent Ripple Rejection: 75dB PSRR at 120Hz filters AC noise, ideal for audio and precision analog circuits.
- Thermally Efficient Package: TO-252-3 (DPAK) design dissipates heat effectively, ensuring stable performance.
3.3V Logic Power Supply
Provides a stable 3.3V rail for microcontrollers, FPGAs, and digital logic from a 5V or 12V input, with 800mA capacity for moderate loads.
Post-Regulation for Switching Converters
Reduces ripple and noise from a DC-DC converter, leveraging 75dB PSRR at 120Hz to deliver clean analog supply rails.
Battery-Powered Equipment
Maintains regulation with a low 1.2V dropout, extending usable battery life in portable devices down to 4.5V input for a 3.3V output.
Industrial Sensor Interfaces
Powers precision sensors and ADCs, ensuring low output noise and stable voltage for accurate measurements in noisy factory environments.
Automotive Infotainment Systems
Regulates 5V or 12V automotive rails down to 3.3V for display controllers and audio DSPs, with thermal protection for reliability.
Networking Equipment
Supplies clean 3.3V to Ethernet PHYs and switches, reducing bit errors through stable voltage and high ripple rejection.
- Q: What is the output voltage of the LM1117IDT-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- 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 must be at least 1.2V above the output (dropout) and typically up to 15V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 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 TO-252-3 (DPAK) package.
- Q: What is the output voltage of the LM1117IDT-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- 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 must be at least 1.2V above the output (dropout) and typically up to 15V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 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 TO-252-3 (DPAK) package.

LM1117IDT-3.3/NOPB.pdf