Texas Instruments LP2981AIM5-5.0/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.17 | $1.17 |
| 15+ | $1.13 | $16.95 |
| 25+ | $1.11 | $27.75 |
| 50+ | $1.05 | $52.50 |
| 100+ | $0.92 | $92.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 5V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.37V @ 100mA |
| Current - Output | 100mA |
| Current - Quiescent (Iq) | 95 µA |
| Current - Supply (Max) | 1.7 mA |
| PSRR | 63dB (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 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |  |
The LP2981AIM5-5.0/NOPB from Texas Instruments is a precision low-dropout regulator delivering a fixed 5.0V output at up to 100mA. With an ultra-low 95 µA quiescent current and 0.37V dropout, it is perfect for battery-powered and noise-sensitive applications. The compact SOT-23-5 package fits space-constrained designs.
- Ultra-Low Power: 95 µA quiescent current significantly extends battery life in portable devices.
- Stable 5V Rail: Provides a precise 5V output for legacy and mixed-signal circuits.
- Noise Suppression: 63dB PSRR at 1kHz filters high-frequency interference.
- Small Size: SOT-23-5 package minimizes PCB footprint.
5V Logic Systems
Many legacy sensors and microcontrollers operate at 5V; this LDO provides a stable, low-noise rail for reliable operation.
Battery-Powered Instruments
The 95 µA quiescent current is ideal for handheld multimeters and field instruments, extending battery life.
Automotive Sensor Interfaces
With 63dB PSRR at 1kHz, it cleans alternator noise, ensuring accurate readings from 5V sensors.
Industrial Control Panels
Provides clean 5V for PLC I/O modules, reducing false triggers from power supply noise.
Consumer Appliances
In smart home devices, the LP2981 powers 5V MCUs and displays with minimal heat generation.
RF Modules
For 5V RF transceivers, the low noise output improves signal clarity and range.
- Q: What is the output voltage of the LP2981AIM5-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 5.0V up to 16V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.37V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 95 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
LP2981AIM5-5.0/NOPB.pdf
- Q: What is the output voltage of the LP2981AIM5-5.0/NOPB?
- A: The fixed output voltage is 5.0V.
- Q: What is the maximum output current?
- A: The maximum output current is 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 5.0V up to 16V (absolute maximum).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.37V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is typically 95 µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
