National Semiconductor LP3985IM5X-2.9
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.76 | $0.76 |
| 15+ | $0.17 | $2.55 |
| 25+ | $0.17 | $4.25 |
| 50+ | $0.16 | $8.00 |
| 100+ | $0.14 | $14.00 |
| N+ | $0.03 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 2.9V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.1V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | 250 µA |
| PSRR | 50dB ~ 40dB (1kHz ~ 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 |
The LP3985IM5X-2.9 is a high-performance low dropout regulator providing a fixed 2.9V output at up to 150mA. Its industry-leading 0.1V dropout at full load enables operation from nearly depleted batteries. With 150µA quiescent current and PSRR of 50dB to 40dB from 1kHz to 10kHz, it delivers clean, stable power for portable and noise-sensitive electronics in a compact SOT-23-5 package.
- Ultra-Low Dropout (0.1V): Enables operation from very low input voltages, ideal for single-cell battery applications.
- Excellent Transient Response: Maintains stable output during rapid load changes, critical for digital and RF circuits.
- Good Noise Filtering: 50dB to 40dB PSRR across 1kHz to 10kHz reduces high-frequency noise for sensitive loads.
- Compact SOT-23-5: Industry-standard package for easy integration and space savings.
Ultra-Low Dropout Applications
The exceptional 0.1V dropout at 150mA makes this regulator perfect for powering circuits directly from a single Li-ion cell, maximizing usable battery capacity.
Portable Audio Players
With PSRR of 50dB at 1kHz and 40dB at 10kHz, it provides clean power to audio DACs and headphone amplifiers, reducing audible noise and distortion.
GPS Receivers
Maintain a stable 2.9V rail for GPS modules in navigation devices, ensuring consistent performance even as the battery voltage fluctuates.
Wearable Fitness Trackers
The low dropout and small SOT-23-5 package enable compact, efficient power management for sensors and microcontrollers in fitness bands.
Digital Cameras
Power image sensors and processing chips with a clean 2.9V supply, benefiting from the low dropout to maintain regulation during high-current capture bursts.
IoT Edge Devices
Regulate power for wireless sensors and actuators in smart home systems, where the low dropout extends battery life and the PSRR ensures reliable data transmission.
- Q: What is the output voltage of the LP3985IM5X-2.9?
- A: The fixed output voltage is 2.9V.
- Q: What is the maximum output current?
- A: It can provide 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; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
LP3985IM5X-2.9.pdf
- Q: What is the output voltage of the LP3985IM5X-2.9?
- A: The fixed output voltage is 2.9V.
- Q: What is the maximum output current?
- A: It can provide 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; refer to the datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
