Overview
The LP2985AITP-2.8/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and precise voltage supply, this component is part of the LP2985 series, known for its low noise and high PSRR (Power Supply Rejection Ratio). The LP2985AITP-2.8/NOPB is specifically tailored for portable and battery-powered devices, offering a fixed output voltage of 2.8V. Its compact SOT-23 package makes it suitable for space-constrained designs, while its low quiescent current enhances battery life, making it a competitive choice for consumer electronics, IoT devices, and industrial applications.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 2.8 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 280 | mV | at 150mA |
| Input Voltage Range | 2.5 to 16 | V | |
| Quiescent Current | 75 | µA | Typical |
| PSRR | 70 | dB | at 1kHz |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 |
Key Features
- Low dropout voltage for efficient operation in low input voltage conditions.
- High PSRR ensures stable output in noisy environments.
- Low quiescent current extends battery life in portable devices.
- Thermal shutdown and current limit protection enhance reliability.
- Compact SOT-23 package ideal for space-constrained designs.
Applications
The LP2985AITP-2.8/NOPB is widely used in applications requiring a stable voltage supply. Its key applications include:
- Portable Electronics: Smartphones, tablets, and wearables benefit from its low quiescent current and compact size.
- IoT Devices: Sensors and wireless modules rely on its stable output and low noise.
- Industrial Equipment: Its robust design and thermal protection make it suitable for harsh environments.
- Automotive Electronics: Used in infotainment systems and sensors due to its wide input voltage range.
Q & A
1. What is the output voltage of the LP2985AITP-2.8/NOPB?
The output voltage is fixed at 2.8V.
2. What is the maximum output current?
The maximum output current is 150mA.
3. What is the dropout voltage at 150mA?
The dropout voltage is 280mV at 150mA.
4. What is the input voltage range?
The input voltage range is 2.5V to 16V.
5. What is the quiescent current?
The typical quiescent current is 75µA.
6. What is the PSRR at 1kHz?
The PSRR is 70dB at 1kHz.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. What package does it use?
It uses a SOT-23-5 package.
9. Is it suitable for battery-powered devices?
Yes, its low quiescent current makes it ideal for battery-powered devices.
10. Does it include protection features?
Yes, it includes thermal shutdown and current limit protection.
