Texas Instruments LP5951MF-3.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.68 | $1.68 |
| 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) | 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 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The LP5951MF-3.0/NOPB is a fixed 3.0V low dropout linear regulator capable of delivering 150mA of output current. It features a low quiescent current of 55µA and a dropout voltage of just 350mV at full load, making it highly efficient for battery-operated systems. The device offers excellent power supply rejection of 60dB at 100Hz, ensuring clean power for sensitive analog and digital circuits. Housed in a compact SOT-23-5 package, this LDO is an ideal choice for space-constrained portable applications.
- Extended Battery Life: Ultra-low 55µA quiescent current minimizes standby power consumption in portable devices.
- Clean Power Delivery: High PSRR (60dB at 100Hz) filters supply noise, ensuring stable operation for sensitive analog circuits.
- Low Dropout Operation: 350mV dropout at 150mA allows regulation even when input voltage is close to output, maximizing usable battery capacity.
- Compact Footprint: SOT-23-5 package saves PCB space for miniaturized designs.
Battery-Powered Portable Devices
The LP5951's low 55µA quiescent current and 350mV dropout at full load make it ideal for extending battery life in handheld instruments, remote controls, and wireless sensors 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 audio codecs in portable audio players and measurement equipment.
Microcontroller Power Supply
Provide a clean, stable 3.0V rail to low-power MCUs like MSP430 or STM32L0 series. The SOT-23-5 package fits compact PCB layouts, and the 150mA capacity covers typical digital core loads.
Wireless Module Regulation
For Bluetooth Low Energy (BLE) modules and Zigbee transceivers, the LP5951 maintains output stability during RF burst currents, while its PSRR reduces interference from the RF power amplifier stage.
Sensor Interface Boards
In IoT sensor nodes, this regulator powers MEMS accelerometers, temperature sensors, and humidity sensors. The low dropout ensures operation even when the battery voltage approaches the output level.
Wearable Electronics
The small SOT-23-5 footprint and low quiescent current make it suitable for smartwatches and fitness bands, where PCB space is limited and battery life is critical.
- Q: What is the output voltage of the LP5951MF-3.0/NOPB?
- A: The fixed output voltage is 3.0V.
- 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 not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 350mV at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 55µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
LP5951MF-3.0/NOPB.pdf
- Q: What is the output voltage of the LP5951MF-3.0/NOPB?
- A: The fixed output voltage is 3.0V.
- 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 not specified in the provided data; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is 350mV at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 55µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
