National Semiconductor LP2989ILD-1.8
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 15+ | $0.90 | $13.50 |
| 25+ | $0.88 | $22.00 |
| 50+ | $0.83 | $41.50 |
| 100+ | $0.74 | $74.00 |
| N+ | $0.15 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| 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) | 200 µA |
| Current - Supply (Max) | 9 mA |
| PSRR | 60dB (1kHz) |
| Control Features | Enable, Error Flag |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-WDFN Exposed Pad |
| Supplier Device Package | 8-WSON (4x4) |
The LP2989ILD-1.8 is a 500mA low-dropout linear regulator from National Semiconductor, providing a fixed 1.8V output. Featuring 0.65V dropout at full load and 200µA quiescent current, it excels in battery-powered and low-voltage applications. The 8-WSON package offers excellent thermal performance in a small footprint.
- 500mA output with 0.65V dropout enables efficient regulation from low input margins.
- 200µA quiescent current extends battery life in portable designs.
- 60dB PSRR at 1kHz filters switching noise for clean analog rails.
- 8-WSON package with exposed pad improves heat dissipation.
Portable Battery Devices
With 200µA quiescent current and 0.65V dropout, it maximizes battery life in handheld instruments.
FPGA Core Supplies
Delivers 1.8V at 500mA for low-voltage FPGA cores, with 60dB PSRR at 1kHz for stable operation.
Wireless Transceivers
Provides clean 1.8V to RF sections, minimizing noise coupling into sensitive PLLs and mixers.
Medical Sensors
Low dropout ensures regulation from a 2.5V lithium cell, powering precision analog front-ends.
Automotive Infotainment
Regulates 1.8V for DSPs and codecs, with thermal shutdown for dashboard heat exposure.
Industrial IoT Nodes
Compact 8-WSON package fits small sensor nodes, delivering stable 1.8V for microcontrollers.
- Q: What is the output voltage?
- A: Fixed 1.8V output.
- Q: What is the maximum current?
- A: 500mA continuous output.
- Q: What is the input voltage range?
- A: Not specified in the provided data; refer to datasheet.
- Q: What is the dropout voltage?
- A: 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: 200µA typical.
- Q: What package is available?
- A: 8-WSON (4x4mm).
- Q: What is the output voltage?
- A: Fixed 1.8V output.
- Q: What is the maximum current?
- A: 500mA continuous output.
- Q: What is the input voltage range?
- A: Not specified in the provided data; refer to datasheet.
- Q: What is the dropout voltage?
- A: 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: 200µA typical.
- Q: What package is available?
- A: 8-WSON (4x4mm).

LP2989ILD-1.8.pdf