Texas Instruments LP2981A-33DBVR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.67 | $0.67 |
| 15+ | $0.65 | $9.75 |
| 25+ | $0.64 | $16.00 |
| 50+ | $0.60 | $30.00 |
| 100+ | $0.53 | $53.00 |
| N+ | $0.11 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Marketplace | Cut Tape (CT) |
| 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 LP2981A-33DBVR from Texas Instruments is a fixed 3.3V LDO regulator offering 100mA output. It features a low dropout of 0.37V at full load and a quiescent current of 95µA. With 63dB PSRR at 1kHz, it provides clean, stable power. The SOT-23-5 package is ideal for space-constrained, battery-powered designs.
- Low Quiescent Current: 95µA extends battery life in portable devices.
- Stable Output: 63dB PSRR at 1kHz ensures clean power for analog circuits.
- Low Dropout: 0.37V at 100mA maximizes efficiency in 3.7V to 3.3V conversions.
- Compact Package: SOT-23-5 fits small PCBs.
Battery-Powered Wearables
The 100mA output and 95µA quiescent current are ideal for fitness trackers and smartwatches.
Portable Medical Monitors
Stable 3.3V rail for heart rate and blood oxygen sensors, with 63dB PSRR at 1kHz reducing noise.
IoT Edge Devices
Provides clean power for Wi-Fi and BLE modules, with low dropout ensuring operation from 3.7V Li-ion batteries.
Automotive Telematics
Reliable 3.3V for GPS receivers and communication modules in vehicle tracking systems.
Handheld Test Equipment
Compact SOT-23-5 package and low quiescent current suit portable multimeters and calibrators.
- Q: What is the output voltage?
- A: The LP2981A-33DBVR provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is up to 3.3V (refer to datasheet for minimum).
- Q: What is the dropout voltage?
- A: Dropout is 0.37V at 100mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 95µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
LP2981A-33DBVR.pdf
- Q: What is the output voltage?
- A: The LP2981A-33DBVR provides a fixed 3.3V output.
- Q: What is the maximum output current?
- A: It can deliver up to 100mA.
- Q: What is the input voltage range?
- A: The input voltage range is up to 3.3V (refer to datasheet for minimum).
- Q: What is the dropout voltage?
- A: Dropout is 0.37V at 100mA load.
- Q: What is the quiescent current?
- A: Quiescent current is 95µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
