Overview
The LP2985IM5X-4.5 is a low-dropout (LDO) voltage regulator produced by Texas Instruments, designed to deliver a fixed output voltage of 4.5V. This product is part of Texas Instruments' LP2985 series, which is known for its low quiescent current and high accuracy. The LP2985IM5X-4.5 is housed in a SOT-23-5 package, making it suitable for space-constrained applications. It is targeted at portable electronics, battery-powered devices, and other applications requiring stable and efficient voltage regulation. Its unique selling points include low dropout voltage, low noise performance, and thermal shutdown protection.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 4.5 | V | Fixed |
| Input Voltage Range | 2.5 to 16 | V | |
| Dropout Voltage | 300 | mV | Typical at 150mA |
| Output Current | 150 | mA | Maximum |
| Quiescent Current | 85 | µA | Typical |
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.05 | %/mA | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | ||
| Protection Features | Thermal Shutdown, Current Limit |
Key Features
- Low Dropout Voltage: Ensures efficient operation even with low input voltages.
- Low Quiescent Current: Ideal for battery-powered applications, extending battery life.
- High Accuracy: Provides precise voltage regulation for sensitive electronics.
- Thermal Shutdown Protection: Prevents damage from overheating.
- Compact SOT-23-5 Package: Suitable for space-constrained designs.
Applications
The LP2985IM5X-4.5 is widely used in portable electronics, such as smartphones, tablets, and wearable devices, where stable voltage regulation is critical. It is also suitable for battery-powered applications like wireless sensors and IoT devices, thanks to its low quiescent current. Additionally, it finds use in industrial control systems and automotive electronics, where reliability and efficiency are paramount. Its compact size and robust performance make it a versatile choice for various electronic designs.
Q & A
1. What is the output voltage of the LP2985IM5X-4.5?
The output voltage is fixed at 4.5V.
2. What is the input voltage range for this regulator?
The input voltage range is 2.5V to 16V.
3. What is the maximum output current?
The maximum output current is 150mA.
4. Does the LP2985IM5X-4.5 have thermal protection?
Yes, it includes thermal shutdown protection.
5. What is the dropout voltage of this regulator?
The dropout voltage is typically 300mV at 150mA.
6. Is this regulator suitable for battery-powered devices?
Yes, its low quiescent current makes it ideal for battery-powered applications.
7. What package does the LP2985IM5X-4.5 come in?
It comes in a SOT-23-5 package.
8. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
9. Does this regulator have current limit protection?
Yes, it includes current limit protection.
10. Can the LP2985IM5X-4.5 be used in automotive applications?
Yes, it is suitable for automotive electronics due to its robust performance and protection features.
