Overview
The LP2985IM5-4.5 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and low-noise power supply, this regulator is part of the MicroPwr series, capable of delivering up to 150mA of output current. Its compact SOT-23-5 package makes it suitable for space-constrained designs. The LP2985IM5-4.5 is particularly noted for its low dropout voltage and low noise performance, making it ideal for use in portable and battery-powered devices.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Voltage | 2.5 to 16 | V | |
| Output Voltage | 4.5 | V | Fixed |
| Output Current | 150 | mA | |
| Dropout Voltage | 0.307 | V | Max at 150mA |
| Quiescent Current | 850 | µA | |
| Operating Temperature | -40 to +125 | °C | |
| Package | SOT-23-5 |
Key Features
- Low dropout voltage for efficient power conversion.
- Low noise output, ideal for sensitive analog circuits.
- Compact SOT-23-5 package for space-saving designs.
- Fixed output voltage of 4.5V for simplified design.
- Thermal shutdown and current limit protection for enhanced reliability.
Applications
The LP2985IM5-4.5 is widely used in portable electronics, battery-powered devices, and applications requiring a stable and low-noise power supply. Its compact size and efficient performance make it suitable for use in consumer electronics, medical devices, and industrial control systems. Specific applications include powering microcontrollers, sensors, and RF modules in handheld devices and IoT applications.
Q & A
What is the maximum input voltage for the LP2985IM5-4.5?
The maximum input voltage is 16V.
What is the output current capability of this regulator?
The LP2985IM5-4.5 can deliver up to 150mA of output current.
What is the dropout voltage at maximum load?
The dropout voltage is 307mV at 150mA.
Is the output voltage fixed or adjustable?
The output voltage is fixed at 4.5V.
What is the operating temperature range?
The operating temperature ranges from -40°C to +125°C.
What package does the LP2985IM5-4.5 come in?
It is available in a SOT-23-5 package.
Does this regulator have protection features?
Yes, it includes thermal shutdown and current limit protection.
What is the typical quiescent current?
The typical quiescent current is 850µA.
Can this regulator be used in battery-powered devices?
Yes, its low dropout voltage and low quiescent current make it ideal for battery-powered applications.
Is the LP2985IM5-4.5 suitable for noise-sensitive applications?
Yes, it features low noise output, making it suitable for noise-sensitive analog circuits.
