Overview
The LP2985IBP-1.8 is a low-dropout (LDO) voltage regulator manufactured by Texas Instruments. Designed for applications requiring a stable and precise 1.8V output, this regulator is part of the LP2985 series, known for its low noise and high accuracy. The LP2985IBP-1.8 is ideal for battery-powered devices, portable electronics, and other systems where power efficiency and reliability are critical. Its compact form factor and robust performance make it a popular choice among engineers and designers in the consumer electronics and industrial automation sectors.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Output Voltage | 1.8 | V | Fixed |
| Input Voltage Range | 2.5 to 16 | V | |
| Output Current | 150 | mA | |
| Dropout Voltage | 300 | mV | at 150 mA |
| Line Regulation | 0.02 | %/V | |
| Load Regulation | 0.05 | %/mA | |
| Operating Temperature Range | -40 to +125 | °C | |
| Package | SOT-223 | Surface Mount |
Key Features
- Low dropout voltage for efficient operation in low-input voltage scenarios.
- High accuracy output voltage (±2% over temperature).
- Low noise performance, ideal for sensitive analog and digital circuits.
- Thermal shutdown and current limit protection for enhanced reliability.
- Compact SOT-223 package for space-constrained applications.
Applications
The LP2985IBP-1.8 is widely used in various applications, including:
- Portable Electronics: Provides stable power for smartphones, tablets, and handheld devices.
- Industrial Automation: Ensures reliable operation of sensors, controllers, and communication modules.
- Consumer Electronics: Suitable for audio devices, cameras, and other low-power gadgets.
- Medical Devices: Supports precision power requirements in medical equipment.
- Automotive Electronics: Used in infotainment systems and onboard sensors.
Q & A
1. What is the maximum input voltage for the LP2985IBP-1.8?
The maximum input voltage is 16V.
2. Can this regulator handle a 200mA load?
No, the maximum output current is 150mA.
3. Is the output voltage adjustable?
No, the LP2985IBP-1.8 provides a fixed 1.8V output.
4. What is the dropout voltage at 150mA?
The dropout voltage is 300mV at 150mA.
5. Does this regulator include thermal protection?
Yes, it features thermal shutdown protection.
6. What is the operating temperature range?
It operates from -40°C to +125°C.
7. Is the LP2985IBP-1.8 suitable for battery-powered devices?
Yes, its low dropout voltage makes it ideal for battery-powered applications.
8. What package does this regulator use?
It comes in a SOT-223 surface-mount package.
9. Can it be used in automotive applications?
Yes, it is suitable for automotive electronics, provided the operating conditions are within its specifications.
10. How accurate is the output voltage?
The output voltage accuracy is ±2% over the operating temperature range.
