Texas Instruments LP3985ITL-3.1/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.72 | $0.72 |
| 15+ | $0.70 | $10.50 |
| 25+ | $0.68 | $17.00 |
| 50+ | $0.65 | $32.50 |
| 100+ | $0.57 | $57.00 |
| 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) | 6V |
| Voltage - Output (Min/Fixed) | 3.1V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.1V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | 250 µA |
| PSRR | 50dB ~ 40dB (1kHz ~ 10kHz) |
| 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 | 5-WFBGA, DSBGA |
| Supplier Device Package | 5-DSBGA (1.41x1.08) |
The LP3985ITL-3.1/NOPB from Texas Instruments is a 150mA low dropout linear regulator with a fixed 3.1V output. Its ultra-low 0.1V dropout voltage is among the best in its class, enabling operation from very close input voltages. The compact 5-DSBGA package and 150 µA quiescent current make it ideal for space-constrained, battery-powered designs.
- Exceptional Low Dropout: 0.1V dropout at 150mA maximizes efficiency and allows operation from nearly depleted batteries.
- Ultra-Compact Package: 5-DSBGA (1.41x1.08mm) saves significant PCB space.
- Stable 3.1V Output: Provides a reliable supply for 3V-class logic and analog circuits.
- Wide Input Range: Accepts inputs up to 6V, offering design flexibility.
Ultra-Low Dropout Applications
The LP3985ITL-3.1's exceptional 0.1V dropout at 150mA makes it ideal for applications where the input voltage is very close to the output, such as powering 3.1V logic from a 3.3V rail.
Compact Portable Devices
The tiny 5-DSBGA package is perfect for smartphones, tablets, and wearables where PCB space is extremely limited.
Battery-Powered Sensors
With 150 µA quiescent current, it efficiently powers environmental sensors, motion detectors, and smart home devices.
RF and Wireless Modules
The 3.1V output is suitable for powering low-voltage RF transceivers and Zigbee/Bluetooth modules, providing clean, stable supply.
Precision Analog Circuits
With 50dB PSRR at 1kHz, it provides adequate noise filtering for op-amps, ADCs, and reference circuits.
Portable Medical Devices
Its small size and low dropout make it suitable for hearing aids, pulse oximeters, and other compact medical electronics.
- Q: What is the output voltage of the LP3985ITL-3.1?
- A: It provides a fixed 3.1V output voltage.
- Q: What is the maximum output current?
- A: The maximum output current is 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 3.1V up to 6V (typical).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It comes in a 5-DSBGA (1.41x1.08) package.
- Q: What is the output voltage of the LP3985ITL-3.1?
- A: It provides a fixed 3.1V output voltage.
- Q: What is the maximum output current?
- A: The maximum output current is 150mA.
- Q: What is the input voltage range?
- A: The input voltage range is from 3.1V up to 6V (typical).
- Q: What is the dropout voltage?
- A: The dropout voltage is typically 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It comes in a 5-DSBGA (1.41x1.08) package.

LP3985ITL-3.1/NOPB.pdf