Texas Instruments LP2981AIM5X-5.0
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.76 | $1.76 |
| 15+ | $0.46 | $6.90 |
| 25+ | $0.45 | $11.25 |
| 50+ | $0.43 | $21.50 |
| 100+ | $0.38 | $38.00 |
| N+ | $0.08 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Tape & Reel (TR) | |
| Output Configuration | Obsolete |
| Output Type | Positive |
| Number of Regulators | Fixed |
| 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 |
The LP2981AIM5X-5.0 from National Semiconductor is a fixed 5.0V low dropout linear regulator capable of delivering 100mA. Housed in a compact SOT-23-5 package, it features an ultra-low quiescent current of 95 µA and a dropout voltage of just 0.37V at full load. With 63dB PSRR at 1kHz, it delivers clean, stable power ideal for battery-operated and noise-sensitive applications.
- Ultra-Low Quiescent Current: 95 µA extends battery life in portable devices.
- Low Dropout: 0.37V at 100mA allows operation with minimal input-output headroom.
- High PSRR: 63dB at 1kHz rejects high-frequency noise for clean analog supplies.
- Compact SOT-23-5: Small footprint ideal for space-constrained designs.
Battery-Powered 5V Logic Supply
With a low quiescent current of 95 µA and 0.37V dropout, the LP2981AIM5X-5.0 is perfect for extending battery life in portable devices requiring a stable 5V rail for logic or sensors.
Noise-Sensitive Analog Circuits
Its 63dB PSRR at 1kHz ensures effective filtering of high-frequency noise, making it suitable for powering op-amps, ADCs, and reference circuits.
Automotive Sensor Interfaces
The SOT-23-5 package and low dropout allow direct regulation from a 5.5V rail, ideal for automotive sensor modules needing clean 5V power.
Wearable and IoT Devices
Ultra-low quiescent current minimizes standby power consumption, critical for always-on IoT nodes and wearables.
Portable Medical Monitors
Stable 5V output with low noise supports reliable operation of portable health monitoring equipment.
Memory and Peripheral Power
Provides clean 5V for EEPROMs, SRAM, and small peripherals in embedded systems.
- Q: What is the output voltage of the LP2981AIM5X-5.0?
- A: It provides a fixed 5.0V output voltage.
- 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 not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.37V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 95 µA.
- Q: What package is available?
- A: It comes in the SOT-23-5 package.
LP2981AIM5X-5.0.pdf
- Q: What is the output voltage of the LP2981AIM5X-5.0?
- A: It provides a fixed 5.0V output voltage.
- 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 not specified in the provided data; refer to the datasheet for absolute maximum ratings.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.37V at 100mA load.
- Q: What is the quiescent current?
- A: The quiescent current is very low at 95 µA.
- Q: What package is available?
- A: It comes in the SOT-23-5 package.
