Texas Instruments LP5951MF-2.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.84 | $0.84 |
| 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 |
Request Quote / Inquiry
| 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) | 5.5V |
| Voltage - Output (Min/Fixed) | 2.5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.35V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 55 µA |
| Current - Supply (Max) | 70 µA |
| PSRR | 60dB ~ 50dB (100Hz ~ 10kHz) |
| 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 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |
The LP5951MF-2.5/NOPB is a fixed 2.5V low-dropout linear regulator from Texas Instruments, capable of delivering 150mA. It features a low quiescent current of 55 µA and a dropout voltage of 0.35V at full load, making it suitable for battery-operated devices. The SOT-23-5 package offers a compact solution for space-limited designs, while its high PSRR ensures clean power for noise-sensitive RF and analog applications.
- Excellent Ripple Rejection: 60dB PSRR at 100Hz ensures clean power for sensitive RF and audio circuits.
- Low Power Consumption: 55 µA quiescent current extends battery life in portable devices.
- Reliable Performance: 0.35V dropout at 150mA ensures stable operation even with low input margins.
- Space-Saving Design: SOT-23-5 package is ideal for compact PCBs.
RF Transceiver Power
The 60dB PSRR at 100Hz and 50dB at 10kHz provides a clean 2.5V rail for RF transceivers, reducing spurious emissions and improving receiver sensitivity.
Low-Power Microcontrollers
With 150mA output and 55 µA quiescent current, it efficiently powers low-power MCUs in always-on applications like smart meters and remote controls.
Portable Instrumentation
The stable 2.5V output is ideal for powering precision analog front-ends in portable multimeters and data loggers, ensuring accurate measurements.
Bluetooth Modules
Provides a clean 2.5V supply for Bluetooth Low Energy modules, minimizing noise coupling into the radio and extending communication range.
Sensor Signal Conditioning
Its low-noise output and good PSRR make it suitable for powering op-amps and sensor bridges in industrial and automotive sensing applications.
Memory Power Supplies
The 2.5V rail can power low-voltage SRAM or flash memory in battery-backed systems, maintaining data integrity with minimal power draw.
- Q: What is the output voltage of the LP5951MF-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V to 5.5V (not explicitly provided, typical for this device).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 55 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
- Q: What is the output voltage of the LP5951MF-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 2.7V to 5.5V (not explicitly provided, typical for this device).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 55 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.

LP5951MF-2.5/NOPB.pdf