Overview
The LP2985IBPX-2.8 is a low-dropout (LDO) voltage regulator produced by National Semiconductor. Designed for applications requiring a stable and efficient power supply, this component is part of the LP2985 series, known for its high accuracy and low quiescent current. The LP2985IBPX-2.8 is specifically tailored for use in portable and battery-powered devices, offering a fixed output voltage of 2.8V. Its compact SOT-23 package makes it ideal for space-constrained designs, while its low dropout voltage and low noise characteristics enhance performance in sensitive electronic systems.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 2.8 | V | Fixed |
| Input Voltage Range | 2.5 to 16 | V | |
| Dropout Voltage | 0.6 | V | Typical at 150mA |
| Output Current | 150 | mA | Maximum |
| Quiescent Current | 85 | µA | Typical |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.04 | %/mA | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23 | 5-Pin | |
| Thermal Resistance | 160 | °C/W | Junction-to-Ambient |
Key Features
- Low Dropout Voltage: Ensures efficient operation even with low input voltages.
- Low Quiescent Current: Minimizes power consumption, extending battery life in portable devices.
- High Accuracy: Provides a stable output voltage with tight tolerance.
- Compact Package: SOT-23 package is ideal for space-constrained applications.
- Low Noise: Suitable for noise-sensitive applications such as audio and RF systems.
Applications
The LP2985IBPX-2.8 is widely used in various applications, including:
- Portable Electronics: Smartphones, tablets, and handheld devices benefit from its low power consumption and compact size.
- Battery-Powered Devices: Ensures stable voltage supply in devices like wireless sensors and IoT modules.
- Consumer Electronics: Used in audio equipment, cameras, and other consumer gadgets requiring low noise and high accuracy.
- Industrial Systems: Provides reliable power in control systems and instrumentation.
- Automotive Electronics: Suitable for in-vehicle applications requiring robust performance over a wide temperature range.
Q & A
1. What is the output voltage of the LP2985IBPX-2.8?
The output voltage is fixed at 2.8V.
2. What is the maximum input voltage for this regulator?
The maximum input voltage is 16V.
3. Can this regulator handle high current loads?
No, the maximum output current is 150mA.
4. Is the LP2985IBPX-2.8 suitable for battery-powered devices?
Yes, its low quiescent current and low dropout voltage make it ideal for battery-powered applications.
5. What is the dropout voltage of this regulator?
The typical dropout voltage is 0.6V at 150mA.
6. What package does the LP2985IBPX-2.8 come in?
It comes in a 5-pin SOT-23 package.
7. Can this regulator operate in high-temperature environments?
Yes, it has an operating temperature range of -40°C to 125°C.
8. Is the LP2985IBPX-2.8 suitable for noise-sensitive applications?
Yes, its low noise characteristics make it ideal for audio and RF systems.
9. What is the typical quiescent current of this regulator?
The typical quiescent current is 85µA.
10. Where can I find detailed technical specifications for this component?
Refer to the official datasheet provided by National Semiconductor or reputable distributors like Digi-Key or Mouser.
