Texas Instruments LP3874EMP-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.09 | $3.09 |
| 15+ | $2.99 | $44.85 |
| 25+ | $2.93 | $73.25 |
| 50+ | $2.76 | $138.00 |
| 100+ | $2.44 | $244.00 |
| N+ | $0.49 | 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 LP3874EMP-3.3/NOPB is a fixed 3.3V low-dropout linear regulator from Texas Instruments, offering up to 800mA output current. Housed in a compact SOT-223-5 package, it features a low dropout voltage of 0.35V at full load and a quiescent current of 9mA. With PSRR ranging from 73dB to 57dB at 120Hz, it provides clean, stable power for noise-sensitive applications.
- High Current (800mA): Supports demanding digital loads like FPGAs and DSPs.
- Ultra-Low Dropout (0.35V): Maximizes efficiency and allows operation from lower input rails.
- Excellent PSRR (73dB): Superior noise rejection for analog and RF circuits.
- SOT-223-5 Package: Compact footprint with good thermal performance.
FPGA and DSP Core Supplies
Delivers 800mA at 3.3V with 0.35V dropout, ideal for powering digital cores from a 5V rail.
High-Efficiency Point-of-Load
Low dropout and 9mA quiescent current make it suitable for POL regulation in telecom and networking gear.
Battery-Powered Equipment
Maintains regulation as battery voltage decays, maximizing usable capacity in portable devices.
Automotive Infotainment
Provides stable 3.3V for processors and displays, with PSRR up to 73dB to reject alternator noise.
Industrial Sensors
Powers precision analog sensors and converters, ensuring low noise and accurate readings.
LED Drivers
Regulates 3.3V for LED control logic and drivers in lighting systems.
- Q: What is the output voltage?
- A: The LP3874EMP-3.3 provides a fixed 3.3V output.
- 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; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout is 0.35V at 800mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 9mA.
- Q: What package is available?
- A: It comes in a SOT-223-5 package.
- Q: What is the output voltage?
- A: The LP3874EMP-3.3 provides a fixed 3.3V output.
- 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; refer to the datasheet.
- Q: What is the dropout voltage?
- A: Dropout is 0.35V at 800mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 9mA.
- Q: What package is available?
- A: It comes in a SOT-223-5 package.

LP3874EMP-3.3/NOPB.pdf