National Semiconductor LP2989AIMM-2.5/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.42 | $2.42 |
| 15+ | $2.35 | $35.25 |
| 25+ | $2.30 | $57.50 |
| 50+ | $2.17 | $108.50 |
| 100+ | $1.91 | $191.00 |
| N+ | $0.38 | Price Inquiry |
Request Quote / Inquiry
| 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) | 2.5V |
| 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 Texas Instruments LP2989AIMM-2.5/NOPB is a precision low-dropout linear regulator delivering a fixed 2.5V output at up to 500mA. Its low 175µA quiescent current and 60dB PSRR make it suitable for battery-powered and noise-sensitive applications. The 8-VSSOP package offers a compact solution for space-constrained designs.
- Extended Battery Life: Ultra-low 175µA quiescent current minimizes standby power draw.
- Clean Power Delivery: 60dB PSRR at 1kHz filters supply noise for sensitive analog loads.
- High Efficiency at Low Dropout: 0.65V dropout at 500mA allows operation close to the battery end-of-life voltage.
- Compact Footprint: 8-VSSOP package saves PCB space without sacrificing thermal performance.
Battery-Powered Portable Devices
The 2.5V fixed output and low 175µA quiescent current make it ideal for extending battery life in handheld instruments, remote controls, and wireless sensors.
Noise-Sensitive Analog Circuits
With 60dB PSRR at 1kHz, this LDO provides clean, stable power for precision op-amps, ADCs, and audio codecs, reducing supply-induced noise.
Microcontroller Core Supply
Modern MCUs often require a stable 2.5V rail. The 500mA capability supports the core and I/O simultaneously, while the low dropout ensures operation even as the battery discharges.
Industrial Sensor Interfaces
In 4-20mA loops or industrial transmitters, the LP2989 delivers a regulated 2.5V for signal conditioning circuits, maintaining accuracy over temperature.
Automotive Infotainment Backup
For always-on modules that need a stable 2.5V rail during cranking, the low dropout and thermal protection ensure reliable startup.
FPGA Auxiliary Rails
Many FPGAs need a 2.5V auxiliary supply. The LP2989's 500mA output and fast transient response support logic and configuration circuits.
- Q: What is the output voltage of the LP2989AIMM-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage must be at least 2.5V above ground; the absolute maximum is 16V (refer to datasheet).
- Q: What is the dropout voltage?
- A: Dropout is typically 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175µA.
- Q: What package is available?
- A: It comes in an 8-pin VSSOP package.
LP2989AIMM-2.5/NOPB.pdf
- Q: What is the output voltage of the LP2989AIMM-2.5/NOPB?
- A: The fixed output voltage is 2.5V.
- Q: What is the maximum output current?
- A: It can deliver up to 500mA.
- Q: What is the input voltage range?
- A: The input voltage must be at least 2.5V above ground; the absolute maximum is 16V (refer to datasheet).
- Q: What is the dropout voltage?
- A: Dropout is typically 0.65V at 500mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 175µA.
- Q: What package is available?
- A: It comes in an 8-pin VSSOP package.
