Texas Instruments LP2989IMX-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.38 | $2.38 |
| 15+ | $2.30 | $34.50 |
| 25+ | $2.25 | $56.25 |
| 50+ | $2.13 | $106.50 |
| 100+ | $1.88 | $188.00 |
| N+ | $0.38 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 1.8V |
| 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 LP2989IMX-1.8/NOPB from Texas Instruments is a fixed 1.8V LDO linear regulator designed for low-voltage, high-performance applications. It delivers up to 500mA with a dropout voltage of 0.65V. Its low quiescent current of 175 μA and PSRR of 60dB at 1kHz make it an excellent choice for battery-powered and noise-sensitive electronics. The 8-SOIC package offers a practical balance of size and thermal performance.
- Low-Voltage Operation: The fixed 1.8V output is ideal for powering the latest low-voltage digital ICs.
- High Efficiency at Light Loads: The 175 μA quiescent current helps maximize battery life in portable devices.
- Clean Output for Analog: The 60dB PSRR at 1kHz reduces power supply noise, improving audio and RF performance.
- Reliable Performance: Texas Instruments' reputation for quality ensures dependable operation.
FPGA and DSP Core Supplies
The fixed 1.8V output is perfect for powering the core logic of modern FPGAs and DSPs, which require precise and stable low-voltage rails.
Battery-Powered Portable Devices
With a low quiescent current of 175 μA, it helps extend battery life in smartphones, tablets, and portable media players.
Noise-Sensitive Audio Circuits
The PSRR of 60dB at 1kHz ensures a clean power supply for audio codecs and amplifiers, minimizing audible noise.
Wireless Communication Modules
Provides a stable 1.8V supply for RF transceivers and baseband processors in IoT and communication devices.
Precision Analog Systems
The low noise and stable output make it suitable for powering operational amplifiers and data converters in measurement equipment.
Embedded Systems
A reliable choice for powering low-voltage microcontrollers and memory in various embedded applications.
- Q: What is the fixed output voltage?
- A: The LP2989IMX-1.8/NOPB provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: This LDO can supply up to 500mA of output current.
- Q: What is the input voltage range?
- A: The device requires an input voltage of at least 1.8V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.65V at the full 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175 μA.
- Q: What package is available?
- A: It is available in the 8-SOIC package.
- Q: What is the fixed output voltage?
- A: The LP2989IMX-1.8/NOPB provides a fixed 1.8V output.
- Q: What is the maximum output current?
- A: This LDO can supply up to 500mA of output current.
- Q: What is the input voltage range?
- A: The device requires an input voltage of at least 1.8V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.65V at the full 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175 μA.
- Q: What package is available?
- A: It is available in the 8-SOIC package.

LP2989IMX-1.8/NOPB.pdf