Texas Instruments LP5951MG-3.3/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 |
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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) | 5.5V |
| Voltage - Output (Min/Fixed) | 3.3V |
| 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 | 5-TSSOP, SC-70-5, SOT-353 |
| Supplier Device Package | SC-70-5 |
| ROHS |
The LP5951MG-3.3/NOPB is a low-dropout linear regulator from Texas Instruments, providing a fixed 3.3V output at up to 150mA. It features a low 55µA quiescent current and excellent PSRR, making it ideal for battery-powered and noise-sensitive portable electronics. The ultra-compact SC-70-5 package is perfect for designs where space is at a premium.
- Ultra-Small Package: The SC-70-5 package is one of the smallest available, ideal for miniaturized wearable and portable devices.
- Low Power Consumption: With 55µA quiescent current, it significantly reduces standby power, extending battery life.
- High Noise Rejection: 60dB PSRR at 100Hz ensures a clean output, critical for audio and RF applications.
- Low Dropout: The 0.35V dropout voltage at 150mA allows efficient operation from batteries with minimal headroom.
Portable Audio Players
The LP5951MG-3.3 provides a clean 3.3V supply for audio DACs and amplifiers, with high PSRR to minimize noise and hum.
Bluetooth Headsets
Its low quiescent current and small SC-70-5 package make it perfect for powering the baseband and RF sections of compact Bluetooth headsets.
Digital Cameras
This LDO regulates a stable 3.3V rail for image processors and memory cards, ensuring reliable operation during high-speed data writes.
Wearable Health Monitors
For heart-rate and activity monitors, the LP5951MG-3.3 offers a low-power, stable voltage source, extending battery life between charges.
GPS Receivers
It provides a noise-free 3.3V supply for GPS modules, improving signal acquisition and positioning accuracy.
Remote Controls
The low dropout voltage allows operation from a 3.7V Li-ion battery down to 3.3V, maximizing the usable battery capacity.
- Q: What is the output voltage of the LP5951MG-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- 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 3.3V up to 5.5V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at a 150mA load.
- Q: What is the quiescent current?
- A: The typical quiescent current is 55µA.
- Q: What package is available?
- A: It comes in a SC-70-5 package.
- Q: What is the output voltage of the LP5951MG-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- 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 3.3V up to 5.5V.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.35V at a 150mA load.
- Q: What is the quiescent current?
- A: The typical quiescent current is 55µA.
- Q: What package is available?
- A: It comes in a SC-70-5 package.

LP5951MG-3.3/NOPB.pdf