Overview
The LP2985A-50DBVT is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and precise 5V output, this component is part of the LP2985 series, known for its low quiescent current and high accuracy. The LP2985A-50DBVT is ideal for battery-powered devices, portable electronics, and other applications where power efficiency and compact size are critical. Its market competitiveness lies in its ability to deliver reliable performance with minimal power consumption, making it a preferred choice for designers targeting energy-efficient solutions.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 5 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 300 | mV | Typical |
| Input Voltage Range | 2.5 to 16 | V | |
| Quiescent Current | 75 | µA | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | DBV | |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.04 | %/mA | Typical |
| PSRR | 70 | dB | @ 1 kHz |
Key Features
- Low Dropout Voltage: Ensures efficient operation even with low input voltages.
- Low Quiescent Current: Minimizes power consumption in standby or idle modes.
- High Accuracy: Provides a stable and precise 5V output voltage.
- Thermal Shutdown and Current Limit Protection: Enhances reliability and safety in demanding applications.
- Compact SOT-23-5 Package: Ideal for space-constrained designs.
Applications
The LP2985A-50DBVT is widely used in various applications, including:
- Portable Electronics: Such as smartphones, tablets, and wearable devices, where low power consumption and compact size are essential.
- Battery-Powered Devices: Including remote controls, IoT sensors, and medical devices, benefiting from its low dropout voltage and quiescent current.
- Consumer Electronics: Such as digital cameras and audio equipment, where stable voltage regulation is critical.
- Industrial Control Systems: Used in low-power control circuits and sensors.
Q & A
1. What is the maximum output current of the LP2985A-50DBVT?
The maximum output current is 150 mA.
2. What is the dropout voltage of this regulator?
The typical dropout voltage is 300 mV.
3. Can the LP2985A-50DBVT operate with an input voltage below 5V?
Yes, it can operate with input voltages as low as 2.5V, thanks to its low dropout voltage.
4. What is the quiescent current of this device?
The typical quiescent current is 75 µA.
5. Is the LP2985A-50DBVT suitable for battery-powered applications?
Yes, its low quiescent current and dropout voltage make it ideal for battery-powered devices.
6. What package does the LP2985A-50DBVT come in?
It is available in a SOT-23-5 (DBV) package.
7. Does this regulator have built-in protection features?
Yes, it includes thermal shutdown and current limit protection.
8. What is the operating temperature range of the LP2985A-50DBVT?
It operates within a temperature range of -40°C to 125°C.
9. What is the typical line regulation of this device?
The typical line regulation is 0.02 %/V.
10. Can the LP2985A-50DBVT be used in industrial applications?
Yes, it is suitable for low-power industrial control systems and sensors.
