Overview
The LP2985A-30DBVR is a low-dropout (LDO) voltage regulator produced by Texas Instruments. This component is designed to provide a stable 3.0V output voltage with high accuracy and low quiescent current, making it ideal for battery-powered and portable devices. Its compact SOT-23-5 package and robust performance make it a popular choice for applications requiring reliable voltage regulation in space-constrained environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 3.0 | V | Fixed |
| Input Voltage Range | 2.5 to 16 | V | |
| Output Current | 150 | mA | |
| Dropout Voltage | 300 | mV | at 150 mA |
| Quiescent Current | 75 | µA | |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | ||
| Line Regulation | 0.02 | %/V | |
| Load Regulation | 0.04 | %/mA | |
| PSRR | 70 | dB | at 1 kHz |
Key Features
- Fixed 3.0V Output: Provides a stable and accurate voltage for sensitive electronics.
- Low Dropout Voltage: Ensures efficient operation even with low input voltages.
- Low Quiescent Current: Minimizes power consumption in battery-powered applications.
- Compact Package: SOT-23-5 package is ideal for space-constrained designs.
- High PSRR: Reduces noise and improves performance in noisy environments.
Applications
The LP2985A-30DBVR is widely used in various applications, including:
- Portable Devices: Ideal for smartphones, tablets, and wearable devices due to its low power consumption and small footprint.
- Industrial Automation: Provides reliable voltage regulation for sensors, controllers, and other industrial equipment.
- Consumer Electronics: Used in audio devices, cameras, and other electronics requiring stable power.
- Automotive Electronics: Suitable for infotainment systems, navigation units, and other automotive applications.
Q & A
1. What is the output voltage of the LP2985A-30DBVR?
The output voltage is fixed at 3.0V.
2. What is the maximum input voltage for this regulator?
The maximum input voltage is 16V.
3. What is the dropout voltage at 150 mA?
The dropout voltage is 300 mV at 150 mA.
4. Can this regulator operate in high-temperature environments?
Yes, it has an operating temperature range of -40°C to 125°C.
5. What is the quiescent current of the LP2985A-30DBVR?
The quiescent current is 75 µA.
6. Is this regulator suitable for battery-powered devices?
Yes, its low quiescent current and low dropout voltage make it ideal for battery-powered applications.
7. What package does the LP2985A-30DBVR come in?
It comes in a compact SOT-23-5 package.
8. What is the PSRR of this regulator?
The PSRR is 70 dB at 1 kHz.
9. Can it handle high noise environments?
Yes, its high PSRR ensures stable operation in noisy environments.
10. What are typical applications for this regulator?
Typical applications include portable devices, industrial automation, consumer electronics, and automotive electronics.
