Texas Instruments LP5951MG-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 |
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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) | 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 | 5-TSSOP, SC-70-5, SOT-353 |
| Supplier Device Package | SC-70-5 |
| ROHS |
The LP5951MG-2.5/NOPB from Texas Instruments is a low-dropout linear regulator delivering a fixed 2.5V output with up to 150mA of current. Its low 55µA quiescent current and 350mV dropout voltage make it an efficient choice for battery-operated and noise-sensitive applications. Housed in a compact SC-70-5 package, this LDO provides stable, clean power for portable electronics, RF modules, and precision analog circuits.
- Extended Battery Life: Ultra-low 55µA quiescent current minimizes standby power draw in portable devices.
- Clean Power Delivery: PSRR of 60dB at 100Hz and 50dB at 10kHz suppresses supply noise for sensitive analog loads.
- Compact Footprint: SC-70-5 package saves PCB area for space-constrained designs.
- Low Dropout: 350mV dropout at 150mA enables operation from lower input rails, improving efficiency.
Battery-Powered Portable Devices
The LP5951's low 55µA quiescent current and 150mA output make it ideal for extending battery life in wearables, remote controls, and portable medical devices where every microamp matters.
Noise-Sensitive Analog Circuits
With PSRR of 60dB at 100Hz and 50dB at 10kHz, this LDO effectively filters power supply noise for precision analog-to-digital converters, op-amps, and sensor signal conditioning circuits.
Wireless Modules and RF Transceivers
The stable output and good transient response support RF modules (Bluetooth, Zigbee) requiring clean 2.5V rails, minimizing spurious emissions and ensuring reliable communication.
Microcontroller Power Supply
Provides a regulated 2.5V rail for low-power MCUs and digital logic, with the SC-70-5 package saving board space in compact embedded designs.
Industrial Sensor Interfaces
The 350mV dropout at full load allows operation from 3.3V or 3.0V rails, making it suitable for industrial sensors and transmitters needing a stable 2.5V reference.
Audio Codec and DAC Supplies
Low output noise and good PSRR help maintain audio fidelity in portable audio players and headsets by isolating the codec from digital switching noise.
- Q: What is the output voltage of the LP5951MG-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 2.5V up to 5.5V (not explicitly stated, typical for this device; verify datasheet).
- Q: What is the dropout voltage?
- A: The dropout voltage is 350mV at 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-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 2.5V up to 5.5V (not explicitly stated, typical for this device; verify datasheet).
- Q: What is the dropout voltage?
- A: The dropout voltage is 350mV at 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-2.5/NOPB.pdf