Texas Instruments LP2989IM-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.87 | $3.87 |
| 15+ | $3.74 | $56.10 |
| 25+ | $3.66 | $91.50 |
| 50+ | $3.46 | $173.00 |
| 100+ | $3.05 | $305.00 |
| N+ | $0.61 | 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 Texas Instruments LP2989IM-3.3/NOPB is a fixed 3.3V low dropout linear regulator capable of delivering 500mA of continuous current. Its low 175 μA quiescent current and 0.65V dropout voltage make it an efficient choice for battery-operated and power-sensitive designs. Housed in an 8-SOIC package, this regulator offers stable output with 60dB ripple rejection at 1kHz, ensuring clean power for analog and digital circuits.
- Extended Battery Life: Ultra-low 175 μA quiescent current minimizes standby power consumption.
- High Output Current: 500mA capability supports a wide range of loads, from microcontrollers to sensors.
- Clean Power Delivery: 60dB PSRR at 1kHz filters noise, improving system accuracy.
- Low Dropout: 0.65V dropout at full load allows operation with minimal headroom, improving efficiency.
Battery-Powered Portable Devices
The low 175 μA quiescent current and 500mA output capability make it ideal for extending battery life in handheld instruments, remote sensors, and portable medical devices.
Precision Analog Supplies
With 60dB PSRR at 1kHz, this LDO effectively filters power supply noise, ensuring clean, stable rails for sensitive analog-to-digital converters and operational amplifiers.
Automotive Infotainment Systems
The wide input voltage range and robust 8-SOIC package allow it to handle voltage transients in automotive environments, powering microcontrollers and display drivers reliably.
Industrial Sensor Interfaces
Its fixed 3.3V output and 500mA current capability provide a stable supply for industrial pressure, temperature, and flow sensors, reducing calibration errors.
Networking Equipment
Used to power low-voltage digital cores and I/O circuits in routers and switches, the LP2989 ensures consistent performance even with fluctuating input rails.
Audio Equipment
The high PSRR at audio frequencies minimizes hum and noise, making it suitable for powering audio codecs and preamplifier stages.
- Q: What is the output voltage of the LP2989IM-3.3/NOPB?
- A: The LP2989IM-3.3/NOPB provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: This regulator can deliver up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 3.3V up to 16V (absolute maximum). For proper regulation, input must be at least 0.65V above the output.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.65V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 175 μA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: This device is offered in an 8-pin SOIC package.
LP2989IM-3.3/NOPB.pdf
- Q: What is the output voltage of the LP2989IM-3.3/NOPB?
- A: The LP2989IM-3.3/NOPB provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: This regulator can deliver up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage range is from 3.3V up to 16V (absolute maximum). For proper regulation, input must be at least 0.65V above the output.
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.65V at a 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is a low 175 μA, making it suitable for battery-powered applications.
- Q: What package is available?
- A: This device is offered in an 8-pin SOIC package.
