Texas Instruments LP2981A-29DBVR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | | |
| Output Configuration | Active |
| Output Type | Positive |
| Number of Regulators | Fixed |
| Voltage - Input (Max) | 16V |
| Voltage - Output (Min/Fixed) | 2.9V |
| 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 LP2981A from Texas Instruments is a fixed 2.9V low-dropout regulator delivering up to 100mA. With a quiescent current of only 95 µA and 63dB PSRR at 1kHz, it provides clean, efficient power for battery-operated and noise-sensitive applications. The SOT-23-5 package is ideal for compact designs.
- Low Power Consumption: 95 µA quiescent current extends battery life in portable devices.
- Excellent Noise Rejection: 63dB PSRR at 1kHz ensures clean output for analog circuits.
- Compact Footprint: SOT-23-5 package saves space in miniaturized designs.
- Stable Fixed Output: 2.9V output simplifies power supply design.
Battery-Powered Consumer Electronics
Low 95 µA quiescent current and 100mA output are perfect for remote controls, calculators, and small handheld devices.
Noise-Sensitive Audio Circuits
With 63dB PSRR at 1kHz, it effectively filters power supply noise, preserving audio clarity.
Low-Power Microcontrollers
Provides a stable 2.9V rail for MCUs and logic, reducing power consumption and heat.
Wireless Sensors and Tags
Compact SOT-23-5 package and low dropout make it ideal for energy-efficient wireless nodes.
Portable Medical Monitors
Reliable output and low noise support accurate readings in glucose meters and pulse oximeters.
Wearable Fitness Devices
Small footprint and low power extend battery life in smartwatches and fitness bands.
- Q: What is the output voltage of the LP2981A-29DBVR?
- A: The output voltage is fixed at 2.9V.
- 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; please refer to the datasheet.
- 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 95 µA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 63dB at 1kHz.
LP2981A-29DBVR.pdf
- Q: What is the output voltage of the LP2981A-29DBVR?
- A: The output voltage is fixed at 2.9V.
- 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; please refer to the datasheet.
- 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 95 µA.
- Q: What is the PSRR?
- A: The power supply rejection ratio is 63dB at 1kHz.
