Texas Instruments LP2989AIMX-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.31 | $3.31 |
| 15+ | $3.20 | $48.00 |
| 25+ | $3.13 | $78.25 |
| 50+ | $2.96 | $148.00 |
| 100+ | $2.61 | $261.00 |
| N+ | $0.52 | 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) | 16V |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.65V @ 500mA |
| Current - Output | 500mA |
| Current - Quiescent (Iq) | 175 µA |
| Current - Supply (Max) | 9 mA |
| PSRR | 60dB (1kHz) |
| 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 | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC |
| ROHS |
The LP2989AIMX-3.3/NOPB from Texas Instruments is a robust low dropout regulator providing a fixed 3.3V output at up to 500mA. It operates from inputs up to 16V, making it ideal for automotive and industrial applications. With 175 µA quiescent current and 60dB PSRR at 1kHz, it delivers clean, efficient power in a compact 8-SOIC package.
- Wide Input Range: Supports up to 16V input, ideal for 12V automotive systems.
- High Output Current: 500mA capacity powers multiple peripherals.
- Low Noise: 60dB PSRR at 1kHz ensures clean audio and data signals.
- Efficient Power Management: 175 µA quiescent current reduces standby losses.
Automotive Electronics
With input capability up to 16V, it regulates 3.3V for ECUs, sensors, and infotainment from a 12V battery, withstanding load-dump transients.
Industrial Microcontrollers
Provides stable 3.3V rail for MCUs and FPGAs in factory automation, with 500mA capacity for peripherals.
Networking Equipment
Powers Ethernet PHYs and switches with clean 3.3V, reducing bit errors in high-speed data links.
Medical Monitoring Devices
Low quiescent current (175 µA) extends battery life in portable patient monitors and glucose meters.
Audio Processing Systems
60dB PSRR at 1kHz filters mains hum and switching noise, ensuring high-fidelity audio DAC performance.
Smart Home Hubs
Regulates 3.3V for Zigbee/Wi-Fi modules and sensors, with thermal shutdown for safety.
- Q: What is the output voltage of the LP2989AIMX-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 3.3V up to 16V (typical).
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175 µA.
- Q: What package is available?
- A: It comes in an 8-SOIC package.
- Q: What is the output voltage of the LP2989AIMX-3.3/NOPB?
- A: The fixed output voltage is 3.3V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 3.3V up to 16V (typical).
- Q: What is the dropout voltage?
- A: Dropout voltage is 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175 µA.
- Q: What package is available?
- A: It comes in an 8-SOIC package.

LP2989AIMX-3.3/NOPB.pdf