Texas Instruments LP2989AIMX-1.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $6.28 | $6.28 |
| 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 LP2989AIMX-1.8 is a low-dropout linear regulator from National Semiconductor, delivering a fixed 1.8V output with up to 500mA of current. Its ultra-low quiescent current of 175 µA makes it an excellent choice for battery-powered and always-on applications. With a dropout voltage of just 0.65V at full load and a PSRR of 60dB at 1kHz, it provides clean, stable power for noise-sensitive circuits. The compact 8-SOIC package is ideal for space-constrained designs.
- Ultra-Low Quiescent Current: 175 µA quiescent current significantly extends battery life in portable devices.
- High-Frequency Noise Rejection: 60dB PSRR at 1kHz ensures clean power for RF and audio applications.
- Wide Input Voltage Range: Operates from 2.2V to 16V, providing flexibility for various power sources.
- Low Dropout: 0.65V dropout at 500mA maximizes efficiency and headroom.
Battery-Powered Portable Electronics
With a low quiescent current of 175 µA, the LP2989AIMX-1.8 is perfect for battery-powered devices like wearables, remote controls, and portable sensors, where extending battery life is critical.
Noise-Sensitive RF and Audio Circuits
The 60dB PSRR at 1kHz ensures that high-frequency noise from switching converters or digital circuits is effectively suppressed, providing a clean supply for RF transceivers and audio codecs.
Microcontroller and Digital Logic Power
Many modern microcontrollers operate at 1.8V. This LDO provides a stable, low-noise 1.8V rail for MCUs, memory, and digital logic, ensuring reliable operation.
Automotive Body Electronics
With an input range up to 16V, the LP2989AIMX-1.8 can be used in automotive environments to power sensors and control modules directly from the 12V battery bus, providing a regulated 1.8V supply.
Industrial Sensor Interfaces
Industrial sensors often require a clean, stable reference voltage. The low dropout and high accuracy of this regulator make it suitable for powering precision analog-to-digital converters and sensor bridges.
Networking and Communication Modules
For low-power communication modules like LoRa, Zigbee, or Bluetooth, the LP2989AIMX-1.8 provides a reliable 1.8V supply, ensuring consistent performance in always-on IoT devices.
- Q: What is the fixed output voltage?
- A: The LP2989AIMX-1.8 provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can supply up to 500mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage should be between 2.2V and 16V for proper regulation.
- 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 very low at 175 µA, making it ideal for battery-powered devices.
- Q: What package is available?
- A: It is available in the 8-pin SOIC (8-SOIC) surface-mount package.
LP2989AIMX-1.8/NOPB.pdf
- Q: What is the fixed output voltage?
- A: The LP2989AIMX-1.8 provides a fixed output voltage of 1.8V.
- Q: What is the maximum output current?
- A: It can supply up to 500mA of continuous output current.
- Q: What is the input voltage range?
- A: The input voltage should be between 2.2V and 16V for proper regulation.
- 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 very low at 175 µA, making it ideal for battery-powered devices.
- Q: What package is available?
- A: It is available in the 8-pin SOIC (8-SOIC) surface-mount package.
