Texas Instruments LP2989AIM-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $10.35 | $10.35 |
| 15+ | $2.38 | $35.70 |
| 25+ | $2.33 | $58.25 |
| 50+ | $2.20 | $110.00 |
| 100+ | $1.94 | $194.00 |
| N+ | $0.39 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| 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 LP2989AIM-3.3/NOPB from Texas Instruments is a fixed 3.3V LDO linear regulator capable of delivering 500mA. With a dropout voltage of just 0.65V at full load, it maintains regulation in battery-powered systems. The 175 μA quiescent current minimizes standby power, while 60dB PSRR at 1kHz ensures clean output for noise-sensitive applications. Housed in an 8-SOIC package, it offers a robust solution for industrial and automotive designs.
- Fixed 3.3V output – simplifies design with no external resistors.
- 500mA current capability – sufficient for MCU and peripheral loads.
- Low 175 μA quiescent current – ideal for battery operation.
- 60dB PSRR at 1kHz – filters supply noise effectively.
- Standard SOIC package – easy to integrate and thermally efficient.
Battery-Powered Instruments
Fixed 3.3V rail with 175 μA quiescent current preserves battery life in handheld meters and data loggers.
Automotive ECU Power
500mA output and 0.65V dropout handle microcontroller loads in engine control units with varying battery voltage.
Industrial Control Systems
Stable 3.3V output with 60dB PSRR at 1kHz rejects motor drive noise for PLC analog inputs.
Networking Equipment
Reliable 3.3V supply for Ethernet PHYs and switches; SOIC package simplifies thermal management.
Consumer Audio Devices
Low noise operation powers DACs and op-amps, maintaining signal integrity in portable players.
Medical Monitoring
Fixed output and low quiescent current support continuous patient monitoring devices.
- Q: What is the output voltage?
- A: Fixed 3.3V output.
- Q: What is the maximum output current?
- A: 500mA.
- Q: What is the input voltage range?
- A: Input voltage is 3.3V (typical).
- Q: What is the dropout voltage?
- A: 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: 175 μA.
- Q: What package is available?
- A: 8-SOIC package.
LP2989AIM-3.3/NOPB.pdf
- Q: What is the output voltage?
- A: Fixed 3.3V output.
- Q: What is the maximum output current?
- A: 500mA.
- Q: What is the input voltage range?
- A: Input voltage is 3.3V (typical).
- Q: What is the dropout voltage?
- A: 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: 175 μA.
- Q: What package is available?
- A: 8-SOIC package.
