Texas Instruments LP2989AIM-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.17 | $3.17 |
| 15+ | $3.07 | $46.05 |
| 25+ | $3.01 | $75.25 |
| 50+ | $2.84 | $142.00 |
| 100+ | $2.51 | $251.00 |
| N+ | $0.50 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tube | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| 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 LP2989AIM-1.8/NOPB from Texas Instruments is a fixed 1.8V low dropout linear regulator capable of delivering 500mA. It features a low dropout voltage of 0.65V at full load and a quiescent current of 175 µA. With a PSRR of 60dB at 1kHz, it provides excellent noise rejection for sensitive analog and digital circuits. The 8-SOIC package is suitable for a wide range of applications.
- High PSRR (60dB @ 1kHz): Provides clean, stable power for noise-sensitive analog and RF circuits.
- Low Dropout (0.65V @ 500mA): Enhances efficiency by allowing operation with a small input-output voltage differential.
- 500mA Output Current: Supports a wide range of digital ICs, including FPGAs and DSPs.
- Fixed 1.8V Output: Ideal for modern low-voltage logic without external components.
FPGA and DSP Core Power
The 1.8V output and 500mA current capability make the LP2989AIM-1.8/NOPB suitable for powering the core logic of FPGAs and DSPs that require a stable, low-voltage supply.
Precision Analog Circuits
With a PSRR of 60dB at 1kHz, this LDO effectively filters power supply noise, making it ideal for powering precision analog-to-digital converters (ADCs) and operational amplifiers.
Battery-Powered Handheld Instruments
The low dropout voltage of 0.65V allows efficient operation from a 2-cell battery pack, maximizing usable battery life in handheld multimeters and field instruments.
Wireless Communication Modules
Clean, regulated 1.8V power is critical for RF transceivers and baseband processors in IoT modules. The LP2989AIM-1.8/NOPB ensures minimal voltage ripple for reliable wireless performance.
Automotive Infotainment Systems
This regulator can power low-voltage digital cores in infotainment systems, providing a stable supply that is immune to fluctuations from the vehicle's electrical system.
- Q: What is the output voltage?
- A: The LP2989AIM-1.8/NOPB provides a fixed 1.8V 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 range is not explicitly listed in the provided data; consult the datasheet for recommended operating conditions.
- Q: What is the dropout voltage?
- A: The dropout voltage is a low 0.65V at a full 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175 µA, which is moderate for a 500mA LDO.
- Q: What is the PSRR performance?
- A: It offers a power supply rejection ratio of 60dB at 1kHz, providing good noise filtering.
LP2989AIM-1.8/NOPB.pdf
- Q: What is the output voltage?
- A: The LP2989AIM-1.8/NOPB provides a fixed 1.8V 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 range is not explicitly listed in the provided data; consult the datasheet for recommended operating conditions.
- Q: What is the dropout voltage?
- A: The dropout voltage is a low 0.65V at a full 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175 µA, which is moderate for a 500mA LDO.
- Q: What is the PSRR performance?
- A: It offers a power supply rejection ratio of 60dB at 1kHz, providing good noise filtering.
