National Semiconductor LP3988IMFX-3.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.24 | $0.24 |
| 15+ | $0.23 | $3.45 |
| 25+ | $0.23 | $5.75 |
| 50+ | $0.21 | $10.50 |
| 100+ | $0.19 | $19.00 |
| N+ | $0.04 | 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) | 3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.15V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 120 µA |
| Current - Supply (Max) | 200 µA |
| PSRR | 65dB ~ 45dB (1kHz ~ 10kHz) |
| Control Features | Enable, Power Good |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The LP3988IMFX-3.0/NOPB is a precision low dropout linear regulator delivering a fixed 3.0V output. Capable of sourcing 150mA, it features a low 150mV dropout voltage and a low 120µA quiescent current, making it an efficient choice for battery-operated devices. Its excellent PSRR performance ensures a clean, stable power supply for noise-sensitive applications.
- Extended Battery Life: The ultra-low 120µA quiescent current minimizes standby power draw, significantly prolonging battery runtime in portable devices.
- High Noise Rejection: With 65dB PSRR at 1kHz, it effectively filters input noise, ensuring clean power for sensitive analog and RF circuits.
- Low Dropout Operation: A 150mV dropout at full load allows operation from nearly depleted batteries, maximizing usable power.
- Compact Footprint: The SOT-23-5 package is ideal for space-limited designs without compromising performance.
Battery-Powered IoT Sensors
The LP3988's low 120µA quiescent current and 150mA output are ideal for always-on IoT sensors, extending battery life while providing a stable 3.0V rail for microcontrollers and sensors.
Portable Medical Devices
With a low dropout of 150mV, this LDO maintains a regulated 3.0V output even as the battery discharges, ensuring reliable operation of critical medical monitoring equipment.
Wireless Communication Modules
The PSRR of 65dB at 1kHz effectively filters noise from switching regulators or digital circuits, providing a clean supply for RF transceivers and improving signal integrity.
Audio Codec Power Supply
For portable audio players, the LP3988 provides a low-noise 3.0V supply to audio codecs, minimizing audible hum and noise for clearer sound reproduction.
Wearable Electronics
The compact SOT-23-5 package and high efficiency make it perfect for space-constrained wearables like smartwatches and fitness trackers, delivering consistent power from a single-cell Li-ion battery.
- Q: What is the output voltage of the LP3988IMFX-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 is 3V (typical). Refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 150mV at a 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 120µA, making it suitable for battery-powered devices.
- Q: What package is available?
- A: It comes in a compact SOT-23-5 package.
LP3988IMFX-3.0/NOPB.pdf
- Q: What is the output voltage of the LP3988IMFX-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 is 3V (typical). Refer to the datasheet for the full operating range.
- Q: What is the dropout voltage?
- A: The dropout voltage is 150mV at a 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 120µA, making it suitable for battery-powered devices.
- Q: What package is available?
- A: It comes in a compact SOT-23-5 package.
