National Semiconductor LM1117DT-2.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.52 | $3.52 |
| 15+ | $0.81 | $12.15 |
| 25+ | $0.79 | $19.75 |
| 50+ | $0.75 | $37.50 |
| 100+ | $0.66 | $66.00 |
| N+ | $0.13 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| 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 | Surface Mount |
| Package / Case | TO-252-3, DPAK (2 Leads + Tab), SC-63 |
| Supplier Device Package | TO-252-3 |
| ROHS |  |
The LM1117DT-2.5/NOPB is a fixed 2.5V low dropout linear regulator from National Semiconductor, capable of delivering 800mA. With a dropout voltage of 1.2V at full load, it requires a minimum input of 3.7V. The regulator offers 75dB PSRR at 120Hz, ensuring clean power for sensitive electronics. Housed in a TO-252-3 package, it provides a compact solution for various consumer and industrial applications.
- Wide Application Fit: 2.5V output suits DDR memory, FPGA I/O, and logic rails.
- Good Ripple Rejection: 75dB PSRR at 120Hz filters mains noise effectively.
- Proven Reliability: LM1117 series is a widely adopted, industry-standard regulator.
- Compact DPAK Package: TO-252-3 saves board space while handling 800mA.
DDR Memory Termination
The 2.5V output is ideal for DDR2/DDR3 VTT rails, providing 800mA for termination resistors with low noise.
FPGA Auxiliary Supply
Powers 2.5V auxiliary rails for FPGA I/O banks, with 75dB PSRR at 120Hz to reject power supply hum.
Set-Top Boxes and Media Players
Stable 2.5V for core logic and HDMI interface circuits, ensuring reliable video/audio output.
Networking Routers
Provides clean 2.5V for PHY chips and switch fabric, with dropout margin for brownout resilience.
Industrial Microcontroller Boards
Regulates 2.5V for ADC references and analog peripherals, improving measurement accuracy.
Consumer Audio DACs
Low-noise 2.5V rail for digital-to-analog converters, preserving dynamic range.
- Q: What is the output voltage of the LM1117DT-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 dropout (1.2V), so minimum 3.7V. Refer to datasheet for maximum.
- 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 5 mA.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
LM1117DT-2.5/NOPB.pdf
- Q: What is the output voltage of the LM1117DT-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 dropout (1.2V), so minimum 3.7V. Refer to datasheet for maximum.
- 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 5 mA.
- Q: What package is available?
- A: It comes in a TO-252-3 (DPAK) package.
