Texas Instruments LP2989IM-2.5/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) | 2.5V |
| 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-2.5/NOPB is a fixed 2.5V low dropout linear regulator rated for 500mA output current. With a low quiescent current of 175 μA and a dropout voltage of just 0.65V at full load, it is optimized for battery-powered and high-efficiency systems. The 8-SOIC package and 60dB PSRR at 1kHz make it a reliable choice for noise-sensitive analog and digital applications.
- Low Power Loss: 175 μA quiescent current reduces idle power draw.
- Stable 2.5V Rail: Fixed output simplifies design and ensures accuracy.
- High Ripple Rejection: 60dB at 1kHz protects sensitive loads.
- Compact SOIC Package: Easy to integrate into space-constrained PCBs.
FPGA and DSP Core Supplies
Modern FPGAs and DSPs often require a stable 2.5V rail. The LP2989IM-2.5 delivers 500mA with low noise, ensuring reliable logic operation.
Battery-Powered Instrumentation
With only 175 μA quiescent current, this LDO is perfect for portable multimeters and data loggers, maximizing operational life.
Communication Transceivers
Provides a clean 2.5V supply for RF transceivers, reducing spurious emissions and improving signal integrity.
Medical Monitoring Devices
Low dropout and high accuracy make it suitable for powering sensitive biosignal amplifiers in wearable health monitors.
Automotive ECU Modules
Handles wide input transients while providing a stable 2.5V reference for engine control unit sensors and microcontrollers.
Industrial Process Control
Ensures consistent 2.5V supply for PLC analog I/O modules, reducing measurement drift.
- Q: What is the output voltage of the LP2989IM-2.5/NOPB?
- A: This device provides a fixed 2.5V output.
- Q: What is the maximum output current?
- A: It can supply up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 2.5V plus dropout (0.65V) and can go up to 16V absolute maximum.
- 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 175 μA, ideal for low-power applications.
- Q: What package is available?
- A: It comes in an 8-pin SOIC package.
- Q: What is the output voltage of the LP2989IM-2.5/NOPB?
- A: This device provides a fixed 2.5V output.
- Q: What is the maximum output current?
- A: It can supply up to 500mA of output current.
- Q: What is the input voltage range?
- A: The input voltage must be at least 2.5V plus dropout (0.65V) and can go up to 16V absolute maximum.
- 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 175 μA, ideal for low-power applications.
- Q: What package is available?
- A: It comes in an 8-pin SOIC package.

LP2989IM-2.5/NOPB.pdf