Texas Instruments LP3985IM5X-3.3/NOPB
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.42 | $0.42 |
| 15+ | $0.40 | $6.00 |
| 25+ | $0.40 | $10.00 |
| 50+ | $0.37 | $18.50 |
| 100+ | $0.33 | $33.00 |
| N+ | $0.07 | 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) | 6V |
| Voltage - Output (Min/Fixed) | 3.3V |
| 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 | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
| ROHS |
The LP3985IM5X-3.3/NOPB from Texas Instruments is a fixed 3.3V output LDO linear regulator delivering up to 150mA. It features an exceptionally low dropout voltage of 0.1V at full load, making it ideal for battery-powered applications. With a quiescent current of 150 µA and 50dB PSRR at 1kHz, it provides reliable, low-noise power in a compact SOT-23-5 package.
- Ultra-Low Dropout: 0.1V at 150mA enables operation with minimal input-output voltage difference, reducing power dissipation.
- Compact Design: SOT-23-5 package saves PCB space for portable and wearable electronics.
- Stable Output: 50dB PSRR at 1kHz filters supply noise, ensuring clean power for sensitive components.
- Proven Reliability: Texas Instruments' high-quality manufacturing ensures consistent performance.
Portable Audio Players
The ultra-low 0.1V dropout at 150mA allows operation from a 3.4V supply to a 3.3V rail, maximizing battery utilization in MP3 players and portable radios.
Smartphone Peripheral ICs
The 50dB PSRR at 1kHz reduces noise from the main processor, ensuring stable power for camera sensors and display drivers in mobile devices.
Wearable Fitness Trackers
The compact SOT-23-5 package and 150mA capacity are ideal for powering Bluetooth LE modules and accelerometers in wrist-worn devices.
Embedded Systems with Mixed Voltages
Provides a clean 3.3V rail for logic ICs from a 5V bus, with the low dropout ensuring minimal power loss in industrial control boards.
Battery Management Circuits
The low quiescent current of 150 µA helps maintain efficiency in battery monitoring systems, where continuous operation is required.
LED Driver Reference Supplies
Stable 3.3V output serves as a reference for LED current control circuits, ensuring consistent brightness in display backlights.
- Q: What is the output voltage of the LP3985IM5X-3.3/NOPB?
- A: This LDO provides a fixed 3.3V output.
- 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 not specified in the provided data; please refer to the Texas Instruments datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at 150mA load, ideal for low headroom applications.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It is available in a SOT-23-5 package.
- Q: What is the output voltage of the LP3985IM5X-3.3/NOPB?
- A: This LDO provides a fixed 3.3V output.
- 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 not specified in the provided data; please refer to the Texas Instruments datasheet.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at 150mA load, ideal for low headroom applications.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: It is available in a SOT-23-5 package.

LP3985IM5X-3.3/NOPB.pdf