Texas Instruments LP2981-33DBVR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.39 | $0.39 |
| 15+ | $0.38 | $5.70 |
| 25+ | $0.37 | $9.25 |
| 50+ | $0.35 | $17.50 |
| 100+ | $0.31 | $31.00 |
| N+ | $0.06 | 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) | 3.3V |
| 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 LP2981-33DBVR from Texas Instruments is a fixed 3.3V low dropout regulator capable of delivering 100mA. With a dropout of just 0.37V and 95 µA quiescent current, it is optimized for battery-powered applications. The SOT-23-5 package is compact, and 63dB PSRR at 1kHz ensures low noise for analog and digital loads.
- Low Noise Operation: 63dB PSRR at 1kHz provides clean power for audio and precision analog circuits.
- Low Dropout: 0.37V dropout at 100mA maximizes efficiency in battery applications.
- Compact Footprint: SOT-23-5 package is ideal for space-limited designs.
- Proven Reliability: Texas Instruments' robust design ensures long-term stability.
Noise-Sensitive Audio Circuits
With 63dB PSRR at 1kHz, the LP2981-33DBVR provides a clean 3.3V rail for audio codecs and amplifiers, reducing audible hum and interference.
Microcontroller Power Supply
Its 100mA output is sufficient for many MCUs and peripherals, while the low dropout ensures stable operation from a 3.6V Li-ion battery.
Automotive Infotainment
The stable 3.3V output and SOT-23-5 package make it suitable for head units and telematics modules requiring reliable power.
Industrial Sensors
For 3.3V sensor interfaces, this regulator offers low noise and good line regulation, ensuring accurate measurements.
Portable Instruments
Low quiescent current and small footprint make it ideal for handheld multimeters and field testers.
- Q: What is the output voltage of the LP2981-33DBVR?
- A: It provides a fixed 3.3V 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; please consult 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 package is available?
- A: It comes in a SOT-23-5 package.
LP2981-33DBVR.pdf
- Q: What is the output voltage of the LP2981-33DBVR?
- A: It provides a fixed 3.3V 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; please consult 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 package is available?
- A: It comes in a SOT-23-5 package.
