Texas Instruments LP2989IMM-2.8/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.28 | $3.28 |
| 15+ | $3.17 | $47.55 |
| 25+ | $3.11 | $77.75 |
| 50+ | $2.93 | $146.50 |
| 100+ | $2.59 | $259.00 |
| N+ | $0.52 | 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) | 2.8V |
| 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-TSSOP, 8-MSOP (0.118", 3.00mm Width) |
| Supplier Device Package | 8-VSSOP |
| ROHS |
The LP2989IMM-2.8/NOPB from Texas Instruments is a fixed-output LDO regulator providing 2.8V at up to 500mA. With a dropout of 0.65V at full load and a quiescent current of 175 μA, it balances efficiency and performance for battery-operated devices. The 8-VSSOP package is compact, and its 60dB PSRR at 1kHz ensures clean power for analog and digital circuits.
- High Current Capacity: 500mA output supports power-hungry processors and peripherals.
- Low Dropout: 0.65V dropout at 500mA maximizes efficiency in low-headroom designs.
- Stable Noise Performance: 60dB PSRR at 1kHz reduces supply noise for sensitive audio and RF circuits.
- Compact Footprint: 8-VSSOP package saves board space in space-constrained designs.
Portable Consumer Electronics
Ideal for powering DSPs and FPGAs in smartphones and tablets, the 2.8V fixed output and 500mA capability support high-performance processors with minimal dropout.
Battery-Powered Instruments
The 175 μA quiescent current and 0.65V dropout make it suitable for handheld multimeters and portable medical devices, preserving battery life during operation.
Networking Equipment
With 60dB PSRR at 1kHz, it provides clean power to Ethernet PHYs and switches, reducing bit errors in data transmission.
Automotive Infotainment
Its stable 2.8V rail powers audio codecs and display drivers in car head units, ensuring consistent performance across temperature ranges.
Industrial Sensors
The 8-VSSOP package and 500mA output are perfect for industrial pressure and temperature sensors requiring a regulated 2.8V supply from a 5V bus.
Wireless Charging Modules
Use as a post-regulator for wireless receivers, the low dropout maintains 2.8V output even when input voltage sags under load.
- Q: What is the output voltage?
- A: The output voltage is fixed at 2.8V.
- Q: What is the maximum output current?
- A: The maximum output current is 500mA.
- Q: What is the input voltage range?
- A: The input voltage is 2.8V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.65V at 500mA.
- Q: What is the quiescent current?
- A: The quiescent current is 175 μA.
- Q: What package is available?
- A: It comes in an 8-VSSOP package.
- Q: What is the output voltage?
- A: The output voltage is fixed at 2.8V.
- Q: What is the maximum output current?
- A: The maximum output current is 500mA.
- Q: What is the input voltage range?
- A: The input voltage is 2.8V.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.65V at 500mA.
- Q: What is the quiescent current?
- A: The quiescent current is 175 μA.
- Q: What package is available?
- A: It comes in an 8-VSSOP package.

LP2989IMM-2.8/NOPB.pdf