National Semiconductor LP3985IM5X-285
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.76 | $0.76 |
| 15+ | $0.17 | $2.55 |
| 25+ | $0.17 | $4.25 |
| 50+ | $0.16 | $8.00 |
| 100+ | $0.14 | $14.00 |
| N+ | $0.03 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | National Semiconductor |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 6V |
| Voltage - Output (Min/Fixed) | 2.85V |
| 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 |
The LP3985IM5X-285 is a fixed 2.85V LDO regulator delivering 150mA with an exceptionally low dropout of 0.1V. It draws only 150µA quiescent current, making it ideal for battery-operated devices. PSRR of 50dB to 40dB (1kHz-10kHz) ensures stable operation in noise-sensitive applications. Available in a SOT-23-5 package, it offers a compact power solution.
- Ultra-Low Dropout: 0.1V at 150mA maximizes battery life in portable designs.
- Low Power Consumption: 150µA quiescent current reduces standby drain.
- Good Noise Rejection: 50dB to 40dB PSRR (1kHz-10kHz) for cleaner analog supplies.
- Space-Saving: SOT-23-5 package fits tight PCB layouts.
Battery-Powered Precision Instruments
The ultra-low 0.1V dropout at 150mA allows maximum utilization of battery capacity, making it perfect for multimeters and portable test equipment requiring a stable 2.85V rail.
Audio Signal Conditioning
With PSRR of 50dB to 40dB (1kHz-10kHz), it reduces power supply hum and noise for headphone amplifiers and microphone preamps operating at 2.85V.
Wireless Sensor Nodes
The low quiescent current and small SOT-23-5 footprint enable compact, energy-efficient designs for IoT sensors transmitting at 2.85V logic levels.
Medical Wearables
Low dropout ensures consistent 2.85V supply for glucose monitors and heart-rate sensors even as battery voltage declines.
Portable GPS Receivers
Clean 2.85V supply with 40dB+ rejection at 10kHz helps maintain GPS signal lock in noisy environments.
Embedded Microcontroller Power
Provides a regulated 2.85V rail for low-power MCUs and memory, reducing power consumption compared to 3.3V systems.
- Q: What is the output voltage?
- A: Fixed 2.85V output.
- Q: What is the maximum current?
- A: 150mA maximum output current.
- Q: What is the input voltage range?
- A: Not specified in provided data; consult the datasheet.
- Q: What is the dropout voltage?
- A: Very low dropout of 0.1V at 150mA.
- Q: What is the quiescent current?
- A: 150µA quiescent current.
- Q: What package is it available in?
- A: SOT-23-5 package.
LP3985IM5X-285.pdf
- Q: What is the output voltage?
- A: Fixed 2.85V output.
- Q: What is the maximum current?
- A: 150mA maximum output current.
- Q: What is the input voltage range?
- A: Not specified in provided data; consult the datasheet.
- Q: What is the dropout voltage?
- A: Very low dropout of 0.1V at 150mA.
- Q: What is the quiescent current?
- A: 150µA quiescent current.
- Q: What package is it available in?
- A: SOT-23-5 package.
