Texas Instruments LP3874EMPX-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.62 | $2.62 |
| 15+ | $2.54 | $38.10 |
| 25+ | $2.48 | $62.00 |
| 50+ | $2.35 | $117.50 |
| 100+ | $2.07 | $207.00 |
| N+ | $0.41 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 800mA |
| Current - Output | 800mA |
| Current - Quiescent (Iq) | 9 mA |
| Current - Supply (Max) | 15 mA |
| PSRR | 73dB ~ 57dB (120Hz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | TO-261-5, TO-261AB |
| Supplier Device Package | SOT-223-5 |
| ROHS |  |
The LP3874EMPX-3.3/NOPB is a low dropout linear regulator providing a fixed 3.3V output at up to 800mA. With a dropout voltage of 350mV and PSRR up to 73dB, it delivers clean, stable power for industrial and automotive applications. The SOT-223-5 package ensures efficient heat dissipation.
- High Current Capacity: 800mA output supports power-hungry digital loads like FPGAs and processors.
- Excellent Ripple Rejection: 73dB PSRR at 120Hz eliminates mains-frequency noise.
- Low Dropout: 350mV dropout at full load maximizes efficiency in 5V to 3.3V conversions.
- Thermal Efficiency: SOT-223 package with exposed pad dissipates heat effectively.
FPGA Core Power
The 800mA output current and 350mV dropout provide reliable 3.3V power for FPGA I/O banks and auxiliary logic, with PSRR up to 73dB at 120Hz filtering rectified AC ripple.
Industrial Sensor Interfaces
Stable 3.3V rail powers precision ADCs and signal conditioning circuits in industrial process control, maintaining accuracy with 57dB PSRR at higher frequencies.
Networking Equipment
Robust 800mA capability supports Ethernet PHYs and switches, while the SOT-223 package with exposed pad aids thermal dissipation in continuous operation.
Automotive Infotainment
Regulates battery voltage to clean 3.3V for infotainment processors, with dropout performance ensuring operation during cold-crank conditions.
Test and Measurement
Low output noise and high PSRR make it suitable for bench instruments requiring stable 3.3V references for measurement circuits.
- Q: What is the output voltage of the LP3874EMPX-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.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 350mV at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 9mA.
- Q: What package is available?
- A: It comes in a SOT-223-5 package.
LP3874EMPX-3.3/NOPB.pdf
- Q: What is the output voltage of the LP3874EMPX-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.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 350mV at 800mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 9mA.
- Q: What package is available?
- A: It comes in a SOT-223-5 package.
