Overview
The LP2985AIM5-4.5 is a low-dropout (LDO) voltage regulator produced by Texas Instruments. This model is designed to provide a fixed output voltage of 4.5V, making it ideal for applications requiring stable and reliable power supply. The LP2985AIM5-4.5 is part of Texas Instruments' extensive portfolio of power management solutions, targeting a wide range of industries including consumer electronics, industrial automation, and automotive electronics. Its compact SOT-23-5 package and low dropout voltage make it a competitive choice for space-constrained and power-sensitive designs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 4.5 | V | Fixed |
| Output Current | 150 | mA | Maximum |
| Dropout Voltage | 300 | mV | Typical at 150mA |
| Input Voltage Range | 2.5 to 16 | V | |
| Quiescent Current | 85 | µA | Typical |
| Operating Temperature Range | -40 to 125 | °C | |
| Package | SOT-23-5 | ||
| Line Regulation | 0.02 | %/V | Typical |
| Load Regulation | 0.05 | %/mA | Typical |
| Thermal Shutdown | Yes |
Key Features
- Low Dropout Voltage: Ensures efficient operation even when the input voltage is close to the output voltage.
- Low Quiescent Current: Minimizes power consumption in standby or low-load conditions.
- Thermal Shutdown Protection: Safeguards the device from overheating, enhancing reliability.
- Compact Package: SOT-23-5 package is ideal for space-constrained applications.
- Stable Output: Provides a stable 4.5V output, suitable for sensitive electronics.
Applications
The LP2985AIM5-4.5 is widely used in various applications requiring a stable 4.5V power supply. Its key application areas include:
- Consumer Electronics: Powering portable devices such as smartphones, tablets, and digital cameras.
- Industrial Automation: Providing reliable power to sensors, controllers, and other industrial equipment.
- Automotive Electronics: Ensuring stable voltage for infotainment systems, sensors, and control modules.
- Medical Devices: Offering precise voltage regulation for critical medical instruments.
- IoT Devices: Supporting low-power and compact designs in IoT applications.
Q & A
1. What is the maximum output current of the LP2985AIM5-4.5?
The maximum output current is 150mA.
2. What is the dropout voltage of this LDO regulator?
The typical dropout voltage is 300mV at 150mA.
3. Can the LP2985AIM5-4.5 operate with an input voltage of 2.5V?
Yes, the input voltage range is from 2.5V to 16V.
4. What is the quiescent current of this device?
The typical quiescent current is 85µA.
5. Is thermal shutdown protection included?
Yes, the LP2985AIM5-4.5 includes thermal shutdown protection.
6. What is the operating temperature range?
The operating temperature range is from -40°C to 125°C.
7. What package does the LP2985AIM5-4.5 come in?
It comes in a SOT-23-5 package.
8. Can this regulator be used in automotive applications?
Yes, it is suitable for automotive electronics.
9. What is the line regulation of this LDO?
The typical line regulation is 0.02%/V.
10. Is the output voltage fixed or adjustable?
The output voltage is fixed at 4.5V.
