Texas Instruments LP2981-30DBVT
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.04 | $1.04 |
| 15+ | $1.00 | $15.00 |
| 25+ | $0.98 | $24.50 |
| 50+ | $0.93 | $46.50 |
| 100+ | $0.82 | $82.00 |
| N+ | $0.16 | 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) | 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 LP2981-30DBVT from Texas Instruments is a fixed 3.0V LDO regulator delivering 100mA. Its ultra-low 95 µA quiescent current and 0.37V dropout make it exceptionally efficient for battery-operated designs. With 63dB PSRR at 1kHz, it ensures clean power for sensitive electronics. The SOT-23-5 package is perfect for space-constrained applications.
- Ultra-Low Quiescent Current: 95 µA extends battery life in portable devices.
- Low Dropout: 0.37V at 100mA maximizes efficiency with minimal input-output headroom.
- Compact Size: SOT-23-5 package fits tight PCB layouts in wearables and IoT modules.
- Stable Output: 63dB PSRR at 1kHz reduces high-frequency noise for RF and analog circuits.
Battery-Powered Instruments
The 95 µA quiescent current and 0.37V dropout extend battery life in handheld multimeters and portable test equipment.
Wireless Modules
With 63dB PSRR at 1kHz, it provides clean 3V power to RF transceivers and Bluetooth modules, reducing signal interference.
MEMS Sensors
Stable 3V output ensures accurate readings from accelerometers and gyroscopes in smartphones and wearables.
Microcontroller Power
The SOT-23-5 package and 100mA output are perfect for powering low-power MCUs in IoT edge devices.
Portable Audio Players
Low noise and compact size make it ideal for analog audio sections in MP3 players and portable DACs.
- Q: What is the fixed output voltage?
- A: The LP2981-30DBVT provides a fixed 3.0V output.
- Q: What is the maximum output current?
- A: It can supply up to 100mA of output current.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 3V, with a dropout of 0.37V at 100mA.
- Q: What is the quiescent current?
- A: Quiescent current is a low 95 µA, ideal for battery-powered devices.
- Q: What is the PSRR performance?
- A: PSRR is 63dB at 1kHz, providing good high-frequency noise rejection.
- Q: What package is available?
- A: It comes in the compact SOT-23-5 package.
LP2981-30DBVT.pdf
- Q: What is the fixed output voltage?
- A: The LP2981-30DBVT provides a fixed 3.0V output.
- Q: What is the maximum output current?
- A: It can supply up to 100mA of output current.
- Q: What is the input voltage requirement?
- A: The input voltage must be at least 3V, with a dropout of 0.37V at 100mA.
- Q: What is the quiescent current?
- A: Quiescent current is a low 95 µA, ideal for battery-powered devices.
- Q: What is the PSRR performance?
- A: PSRR is 63dB at 1kHz, providing good high-frequency noise rejection.
- Q: What package is available?
- A: It comes in the compact SOT-23-5 package.
