Texas Instruments LP3985IM5-4.7/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 | Cut Tape (CT) | Tape & Reel (TR) |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 4.7V |
| 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 LP3985IM5-4.7/NOPB from Texas Instruments is a fixed 4.7V linear regulator capable of delivering 150mA. Packaged in a SOT-23-5, it features an ultra-low dropout voltage of 0.1V at full load and a quiescent current of 150µA. With a PSRR of 50dB at 1kHz, it provides clean power for precision analog and RF applications.
- Ultra-Low Dropout (0.1V @ 150mA): Enables operation with very small input-to-output voltage differences, reducing power dissipation.
- Low Quiescent Current (150µA): Suitable for battery-powered devices requiring long standby times.
- Stable 4.7V Output: Ideal for powering analog circuits that need a precise reference voltage.
- Compact SOT-23-5 Package: Saves PCB space in portable and miniaturized designs.
Precision Analog Circuits
With an ultra-low dropout of 0.1V at 150mA, the LP3985IM5-4.7/NOPB is ideal for powering precision op-amps and ADCs from a 5V rail, ensuring accurate 4.7V supply for reference circuits.
Battery-Powered Instruments
Its low quiescent current of 150µA and minimal dropout make it suitable for handheld meters and data loggers, preserving battery life while maintaining stable output.
RF Transceivers
The PSRR of 50dB at 1kHz helps filter noise from digital circuits, providing a clean 4.7V supply for RF oscillators and mixers, improving signal clarity.
Portable Audio Equipment
For portable recorders and headphone amps, this LDO delivers a noise-free 4.7V rail, reducing hiss and distortion in audio paths.
Sensor Interfaces
In industrial sensor modules, the low dropout ensures stable operation even when the input supply fluctuates, maintaining accurate sensor readings.
Embedded Systems
It can power 5V-tolerant logic and memory ICs in embedded designs, providing a reliable 4.7V supply with minimal heat dissipation.
- Q: What is the output voltage?
- A: The LP3985IM5-4.7/NOPB provides a fixed 4.7V output.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage is 4.7V (typical application requires higher input, see datasheet).
- Q: What is the dropout voltage?
- A: The typical dropout voltage is very low at 0.1V at 150mA.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.
- Q: What is the output voltage?
- A: The LP3985IM5-4.7/NOPB provides a fixed 4.7V output.
- Q: What is the maximum output current?
- A: It can deliver up to 150mA.
- Q: What is the input voltage range?
- A: The input voltage is 4.7V (typical application requires higher input, see datasheet).
- Q: What is the dropout voltage?
- A: The typical dropout voltage is very low at 0.1V at 150mA.
- Q: What is the quiescent current?
- A: The quiescent current is 150µA.
- Q: What package is available?
- A: It comes in a SOT-23-5 package.

LP3985IM5-4.7/NOPB.pdf