Texas Instruments LP3855EMPX-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $5.28 | $5.28 |
| 15+ | $1.21 | $18.15 |
| 25+ | $1.19 | $29.75 |
| 50+ | $1.12 | $56.00 |
| 100+ | $0.99 | $99.00 |
| N+ | $0.20 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Marketplace | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 7V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.44V @ 1.5A |
| Current - Output | 1.5A |
| Current - Quiescent (Iq) | 3 mA |
| Current - Supply (Max) | 10 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 LP3855EMPX-5.0/NOPB from Texas Instruments is a robust, low dropout linear regulator designed for high-current applications. It delivers a fixed 5.0V output with a maximum current of 1.5A. With a low dropout voltage of 0.44V at full load, it maintains regulation even with a small input-to-output voltage differential. Its excellent PSRR of up to 73dB makes it an ideal choice for post-regulating noisy switching supplies to power sensitive analog and digital circuits. The SOT-223-5 package offers a compact, power-efficient solution.
- High Output Current: Capable of delivering 1.5A, making it suitable for powering a wide range of digital and analog loads.
- Excellent Noise Rejection: With 73dB PSRR at 120Hz, it effectively filters out power supply noise, ensuring clean power for sensitive electronics.
- Low Dropout Voltage: The 0.44V dropout at 1.5A minimizes power loss and heat generation, improving overall system efficiency.
- Stable and Reliable: Designed by Texas Instruments, this regulator offers robust protection features and stable operation across various conditions.
High-Current Digital Loads
With a 1.5A output capability, this regulator is ideal for powering FPGAs, DSPs, and microprocessors that require a stable 5V rail with high transient current demands.
Post-Regulation for Switching Supplies
The excellent PSRR (73dB at 120Hz) makes it perfect for cleaning up noisy outputs from DC-DC converters, providing a low-noise 5V supply for sensitive analog and RF circuits.
Industrial Control Systems
In industrial environments, the LP3855EMPX-5.0/NOPB provides a robust and reliable 5V supply for PLCs, motor controllers, and sensor interfaces, ensuring stable operation.
Audio Equipment Power Supply
The low dropout and high PSRR make it suitable for powering audio codecs and amplifiers, minimizing hum and noise from the main power rail.
Networking and Communication Gear
For routers, switches, and base stations, this LDO provides a clean and stable 5V supply for line drivers and interface circuits, ensuring signal integrity.
- Q: What is the output voltage of the LP3855EMPX-5.0/NOPB?
- A: This LDO provides a fixed output voltage of 5.0V.
- Q: What is the maximum output current?
- A: It can deliver a maximum output current of 1.5A, suitable for powering higher-current loads.
- Q: What is the input voltage range?
- A: The input voltage range is from 5.0V up to 7V, requiring a headroom above the output.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.44V at a full 1.5A load, ensuring efficient power conversion.
- Q: What is the quiescent current?
- A: The quiescent current is 3mA, which is reasonable for a high-current LDO.
- Q: What is the PSRR performance?
- A: It offers a power supply rejection ratio of 73dB to 57dB at 120Hz, providing good noise filtering.
LP3855EMPX-5.0/NOPB.pdf
- Q: What is the output voltage of the LP3855EMPX-5.0/NOPB?
- A: This LDO provides a fixed output voltage of 5.0V.
- Q: What is the maximum output current?
- A: It can deliver a maximum output current of 1.5A, suitable for powering higher-current loads.
- Q: What is the input voltage range?
- A: The input voltage range is from 5.0V up to 7V, requiring a headroom above the output.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.44V at a full 1.5A load, ensuring efficient power conversion.
- Q: What is the quiescent current?
- A: The quiescent current is 3mA, which is reasonable for a high-current LDO.
- Q: What is the PSRR performance?
- A: It offers a power supply rejection ratio of 73dB to 57dB at 120Hz, providing good noise filtering.
