Texas Instruments LP5951MF-1.8/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) | 1.8V |
| 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-1.8/NOPB is a low-dropout linear regulator from Texas Instruments, delivering a fixed 1.8V output with up to 150mA of current. Its low 55µA quiescent current and high PSRR make it an efficient, clean power source for battery-operated and noise-sensitive electronics. Housed in a compact SOT-23-5 package, this LDO is a versatile solution for portable and space-constrained designs.
- Extended Battery Life: The ultra-low 55µA quiescent current minimizes standby power draw, ideal for battery-powered devices.
- Clean Power Delivery: High PSRR (60dB at 100Hz) effectively filters input noise, ensuring stable operation for sensitive analog circuits.
- Compact Footprint: The SOT-23-5 package saves valuable PCB space for miniaturized designs.
- Stable Fixed Output: Provides a precise 1.8V rail, eliminating the need for external resistors and simplifying design.
Battery-Powered IoT Sensors
The LP5951's low 55µA quiescent current and 1.8V output are ideal for always-on IoT sensor nodes, maximizing battery life in remote monitoring applications.
Portable Medical Devices
With a stable 1.8V rail and 60dB PSRR at 100Hz, this LDO ensures clean power for sensitive analog front-ends in glucose meters and pulse oximeters.
Wireless Connectivity Modules
For Bluetooth Low Energy and Zigbee modules requiring a precise 1.8V supply, the LP5951 provides a low-noise, stable voltage from a 3.6V Li-ion battery.
Audio Codec Power Supply
The high PSRR (60dB at 100Hz) minimizes power supply noise, preserving audio fidelity in portable speakers and headphones.
Wearable Fitness Trackers
The compact SOT-23-5 package and 150mA capability suit space-constrained wearables, powering the MCU and sensors from a single regulated rail.
Industrial Sensor Interfaces
This regulator offers a reliable 1.8V reference for industrial transducers and data converters, ensuring accurate signal processing in noisy environments.
- Q: What is the output voltage of the LP5951MF-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- 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 1.8V 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 SOT-23-5 package.
LP5951MF-1.8/NOPB.pdf
- Q: What is the output voltage of the LP5951MF-1.8/NOPB?
- A: The fixed output voltage is 1.8V.
- 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 1.8V 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 SOT-23-5 package.
