Texas Instruments LP5951MF-3.3
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.88 | $1.88 |
| 15+ | $0.43 | $6.45 |
| 25+ | $0.42 | $10.50 |
| 50+ | $0.40 | $20.00 |
| 100+ | $0.35 | $35.00 |
| N+ | $0.07 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Bulk | |
| 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 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The LP5951MF-3.3 is a low-power, fixed 3.3V linear regulator from Texas Instruments, designed for battery-powered and portable applications. It delivers up to 150mA with a low dropout voltage of 0.35V. The device features a very low quiescent current of 55µA, making it ideal for extending battery life in always-on systems. Housed in a compact SOT-23-5 package, it offers excellent noise rejection with a PSRR of 60dB at 100Hz.
- Ultra-Low Quiescent Current: 55µA quiescent current significantly extends battery life in portable devices.
- Low Dropout Voltage: 0.35V dropout at 150mA allows operation from nearly depleted batteries.
- Compact SOT-23-5 Package: Ideal for space-constrained designs like wearables and IoT modules.
- Good PSRR: 60dB at 100Hz ensures clean power for sensitive analog and RF circuits.
Battery-Powered Wearables
The LP5951MF-3.3's low 55µA quiescent current extends battery life in wearables and IoT sensors. Its 150mA output is sufficient for MCUs, sensors, and wireless transceivers.
Portable Medical Devices
In glucose monitors and hearing aids, the low dropout of 0.35V ensures stable 3.3V operation even as the battery discharges. The SOT-23-5 package saves critical board space.
Bluetooth and Zigbee Modules
Power RF modules with a clean 3.3V rail. The PSRR of 60dB at 100Hz helps prevent low-frequency noise from affecting RF performance.
Smart Home Sensors
For temperature and humidity sensors, this LDO provides a stable supply from a 3.7V Li-ion battery. The low quiescent current is ideal for always-on applications.
Portable Audio Players
Use the LP5951MF-3.3 to power audio codecs and amplifiers. Its PSRR of 50dB at 10kHz reduces high-frequency switching noise from digital circuits.
Automotive Key Fobs
In keyless entry systems, the low dropout and small package make this regulator a perfect fit for powering the microcontroller from a CR2032 coin cell.
- Q: What is the output voltage of the LP5951MF-3.3?
- A: The LP5951MF-3.3 provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can supply up to 150mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please consult the datasheet.
- 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 quiescent current is a low 55µA, making it ideal for battery-powered devices.
- Q: What is the package type?
- A: This regulator is available in a SOT-23-5 package.
LP5951MF-3.3.pdf
- Q: What is the output voltage of the LP5951MF-3.3?
- A: The LP5951MF-3.3 provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can supply up to 150mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is not specified in the provided data; please consult the datasheet.
- 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 quiescent current is a low 55µA, making it ideal for battery-powered devices.
- Q: What is the package type?
- A: This regulator is available in a SOT-23-5 package.
