National Semiconductor LP3985IBPX-3.2
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.80 | $0.80 |
| 15+ | $0.18 | $2.70 |
| 25+ | $0.18 | $4.50 |
| 50+ | $0.17 | $8.50 |
| 100+ | $0.15 | $15.00 |
| 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) | 3.2V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.1V @ 150mA |
| Current - Output | 150mA |
| Current - Quiescent (Iq) | 150 µA |
| Current - Supply (Max) | 200 µA |
| PSRR | 50dB ~ 40dB (1kHz ~ 10kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Short Circuit |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | SC-74A, SOT-753 |
| Supplier Device Package | SOT-23-5 |
The LP3985IBPX-3.2 from National Semiconductor is a low dropout linear regulator providing a fixed 3.2V output at up to 150mA. With an ultra-low 0.1V dropout at full load and 150 µA quiescent current, it is optimized for battery-powered and energy-efficient applications. The SOT-23-5 package and 50dB PSRR at 1kHz make it a versatile choice for portable electronics.
- Ultra-Low Dropout: 0.1V at 150mA maximizes battery utilization.
- Low Quiescent Current: 150 µA extends standby time in portable devices.
- Stable Output: 50dB PSRR at 1kHz reduces power supply noise.
- Wide Compatibility: 3.2V output suits many 3.3V logic systems with lower power draw.
3.3V Logic Rail Replacement
Provides a stable 3.2V output for logic ICs that can operate slightly below 3.3V, reducing power consumption while maintaining compatibility.
Battery-Powered IoT Devices
Low dropout and 150mA output support ESP8266/ESP32 modules and other IoT SoCs in battery-operated designs.
Portable Instrumentation
Stable 3.2V rail with 50dB PSRR at 1kHz ensures accurate readings in multimeters and handheld test equipment.
Wireless Headphones
Ideal for powering Bluetooth audio chips and DACs, providing clean power for high-quality audio output.
Digital Cameras
Supports image processors and memory cards with a stable 3.2V supply, reducing noise in captured images.
Smart Home Sensors
Compact package and low quiescent current make it suitable for always-on sensors in smart home systems.
- Q: What is the output voltage of the LP3985IBPX-3.2?
- A: The fixed output voltage is 3.2V.
- 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; it must be above 3.2V plus dropout.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: The device comes in a SOT-23-5 package.
LP3985IBPX-3.2.pdf
- Q: What is the output voltage of the LP3985IBPX-3.2?
- A: The fixed output voltage is 3.2V.
- 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; it must be above 3.2V plus dropout.
- Q: What is the dropout voltage?
- A: The dropout voltage is very low at 0.1V at 150mA load.
- Q: What is the quiescent current?
- A: The quiescent current is 150 µA.
- Q: What package is available?
- A: The device comes in a SOT-23-5 package.
