Overview
The LP2985ITPX-2.9/NOPB is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. This product is designed to provide a stable 2.9V output voltage with high accuracy and low dropout voltage, making it ideal for applications requiring precise voltage regulation. The LP2985ITPX-2.9/NOPB is part of Texas Instruments' LP2985 series, which is known for its low noise, low quiescent current, and compact package size. This model is particularly suited for battery-powered devices, portable electronics, and other applications where power efficiency and space-saving are critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 2.9 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 300 | mV | Typical at 150mA |
| Input Voltage Range | 2.5 to 16 | V | |
| Quiescent Current | 75 | µA | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | Compact | |
| Accuracy | ±2 | % | Over temperature |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.05 | %/mA | Typical |
Key Features
- Low Dropout Voltage: Ensures efficient operation even with small input-output differentials.
- Low Quiescent Current: Minimizes power consumption in standby or idle modes.
- High Accuracy: Provides a stable 2.9V output with ±2% accuracy over temperature.
- Compact Package: SOT-23-5 package saves board space in portable and compact designs.
- Low Noise: Ideal for noise-sensitive applications such as audio and RF circuits.
Applications
The LP2985ITPX-2.9/NOPB is widely used in various applications, including:
- Portable Electronics: Such as smartphones, tablets, and wearable devices, where low power consumption and small size are critical.
- Battery-Powered Devices: Provides stable voltage regulation in devices like wireless sensors and IoT modules.
- Consumer Electronics: Used in audio devices, cameras, and other gadgets requiring low noise and high accuracy.
- Industrial Equipment: Suitable for control systems and sensors that operate in harsh environments.
Q & A
1. What is the maximum output current of the LP2985ITPX-2.9/NOPB?
The maximum output current is 150mA.
2. What is the dropout voltage at 150mA?
The dropout voltage is typically 300mV at 150mA.
3. What is the input voltage range for this LDO?
The input voltage range is 2.5V to 16V.
4. Is the output voltage fixed or adjustable?
The output voltage is fixed at 2.9V.
5. What is the typical quiescent current?
The typical quiescent current is 75µA.
6. What package does the LP2985ITPX-2.9/NOPB come in?
It comes in a SOT-23-5 package.
7. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
8. Is this LDO suitable for battery-powered devices?
Yes, its low quiescent current and dropout voltage make it ideal for battery-powered applications.
9. Can this LDO be used in noise-sensitive applications?
Yes, it features low noise output, making it suitable for audio and RF circuits.
10. What is the accuracy of the output voltage?
The output voltage accuracy is ±2% over temperature.
