Texas Instruments LP3988IMF-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.77 | $0.77 |
| 15+ | $0.75 | $11.25 |
| 25+ | $0.73 | $18.25 |
| 50+ | $0.69 | $34.50 |
| 100+ | $0.61 | $61.00 |
| N+ | $0.12 | 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) | 6V |
| Voltage - Output (Min/Fixed) | 3.3V |
| 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 |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The LP3988IMF-3.3/NOPB is a precision low-dropout linear regulator from Texas Instruments, delivering a fixed 3.3V output with up to 150mA of current. Its ultra-low 120µA quiescent current and 150mV dropout voltage make it an excellent choice for battery-operated and power-sensitive applications. The device offers high PSRR (65dB at 1kHz) to suppress supply noise, ensuring clean power for analog and RF circuits. Housed in a compact SOT-23-5 package, it includes thermal shutdown and current limiting for robust operation.
- Extended Battery Life: Ultra-low 120µA quiescent current minimizes standby power draw in portable devices.
- Clean Output Power: 65dB PSRR at 1kHz filters supply noise, ideal for sensitive RF and analog loads.
- Low Dropout: 150mV dropout at 150mA allows operation from a 3.45V rail, improving efficiency.
- Compact Footprint: SOT-23-5 package saves PCB space for space-constrained designs.
Portable Battery-Powered Devices
The LP3988's low 120µA quiescent current and 150mV dropout at 150mA make it ideal for extending battery life in wearables, IoT sensors, and handheld instruments where every microamp matters.
RF and Wireless Modules
With PSRR of 65dB at 1kHz and 45dB at 10kHz, this LDO provides clean, stable power to RF transceivers, GPS modules, and Bluetooth SoCs, reducing noise-induced signal degradation.
Precision Analog Circuits
The low output noise and high PSRR ensure minimal ripple on the 3.3V rail, making it suitable for powering op-amps, ADCs, and reference voltage circuits in measurement equipment.
Audio Codec and DAC Power
Clean 3.3V supply with 65dB PSRR at audio frequencies helps minimize hum and noise in portable audio players, smart speakers, and headphone amplifiers.
Automotive Interior Electronics
The SOT-23-5 package and stable output make it suitable for infotainment clusters, dashboard sensors, and camera modules operating from a regulated 5V bus.
Industrial Sensor Interfaces
For 3.3V logic and sensor bridges in industrial control systems, the LP3988 provides reliable regulation with thermal shutdown and current limit protection.
- Q: What is the output voltage of the LP3988IMF-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- 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 2.5V to 6.0V (based on 3.3V output plus dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 150mV at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 120µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
LP3988IMF-3.3/NOPB.pdf
- Q: What is the output voltage of the LP3988IMF-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- 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 2.5V to 6.0V (based on 3.3V output plus dropout).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 150mV at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 120µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
