Texas Instruments LM1117T-2.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.51 | $1.51 |
| 15+ | $1.46 | $21.90 |
| 25+ | $1.43 | $35.75 |
| 50+ | $1.35 | $67.50 |
| 100+ | $1.19 | $119.00 |
| N+ | $0.24 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 15V |
| Voltage - Output (Min/Fixed) | 2.5V |
| 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 | 0°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | TO-220-3 |
| Supplier Device Package | TO-220-3 |
| ROHS |  |
The LM1117T-2.5/NOPB is a fixed 2.5V low dropout linear regulator from Texas Instruments, capable of delivering 800mA. Its 1.2V dropout at full load allows operation from 3.3V rails with margin. The TO-220 package provides excellent thermal dissipation for industrial and automotive environments. With 5mA quiescent current and 75dB PSRR at 120Hz, it balances efficiency with clean output for sensitive loads.
- High Ripple Rejection: 75dB at 120Hz ensures clean DC output for analog and mixed-signal circuits.
- Robust Thermal Package: TO-220 allows up to 800mA continuous current without overheating.
- Low Dropout: 1.2V dropout enables operation from 3.3V input rails with only 0.8V headroom.
- Proven Reliability: TI's standard LM1117 family has decades of field-proven performance.
FPGA and DSP Core Power
The 2.5V output is ideal for powering low-voltage digital cores in FPGAs and DSPs. The 800mA current capability supports moderate logic loads, while the 75dB PSRR at 120Hz filters out mains ripple for stable operation.
Battery-Powered Instrumentation
With a low 5mA quiescent current, this LDO extends battery life in portable meters and sensors. The TO-220 package allows easy heatsinking for continuous operation near maximum load.
Post-Regulation for Switching Supplies
Use after a buck converter to reduce output noise and ripple. The high PSRR at 120Hz effectively attenuates switching frequency artifacts, providing clean analog supply rails.
Industrial Sensor Interfaces
Provide a stable 2.5V reference for analog-to-digital converters and sensor bridges. The low dropout ensures regulation even when input voltage sags under load transients.
Audio Preamplifier Supply
The 75dB ripple rejection at 120Hz makes this suitable for low-noise audio preamp stages, preventing hum from entering the signal path.
Automotive Infotainment Backup
In systems with 5V main rails, this LDO can generate a 2.5V standby supply for memory retention, with the TO-220 package handling under-hood temperature extremes.
- Q: What is the output voltage of the LM1117T-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- 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 2.5V plus the dropout voltage (1.2V), so typically above 3.7V for regulation.
- 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: This device comes in a TO-220-3 package.
LM1117T-2.5/NOPB.pdf
- Q: What is the output voltage of the LM1117T-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- 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 2.5V plus the dropout voltage (1.2V), so typically above 3.7V for regulation.
- 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: This device comes in a TO-220-3 package.
