Overview
The LP2985-28DBVR is a low-dropout (LDO) linear voltage regulator manufactured by Texas Instruments. This IC is designed to provide a stable 2.8V output voltage with a maximum output current of 150mA. It is part of the LP2985 series, known for its low noise and high performance in portable and non-portable applications. The LP2985-28DBVR is housed in a compact SOT-23-5 package, making it suitable for space-constrained designs. Its primary market includes consumer electronics, industrial automation, and automotive applications, where reliable voltage regulation is critical.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Category | PMIC - 稳压器 - 线性 | - | - |
| Output Voltage | 2.8 | V | Fixed |
| Input Voltage | Up to 16 | V | - |
| Dropout Voltage | 0.28 @ 150mA | V | Typical |
| Output Current | 150 | mA | Minimum |
| Operating Temperature | -40 to 125 | °C | - |
| Package | SOT-23-5 | - | Surface Mount |
Key Features
- Low dropout voltage for efficient operation in low-input voltage scenarios.
- Low noise output, making it ideal for sensitive analog and digital circuits.
- Fixed 2.8V output with a tolerance of 1.5%, ensuring precise voltage regulation.
- Compact SOT-23-5 package for space-saving designs.
- Wide operating temperature range (-40°C to 125°C) for robust performance in harsh environments.
Applications
The LP2985-28DBVR is widely used in applications requiring stable and low-noise voltage regulation. Common use cases include portable electronics such as smartphones and tablets, where efficient power management is essential. It is also employed in industrial automation systems for reliable voltage supply to sensors and control circuits. Additionally, its robust design makes it suitable for automotive electronics, where it can withstand temperature variations and provide consistent performance.
Q & A
1. What is the output voltage of the LP2985-28DBVR?
The LP2985-28DBVR provides a fixed output voltage of 2.8V.
2. What is the maximum input voltage supported?
The maximum input voltage is 16V.
3. What is the typical dropout voltage?
The typical dropout voltage is 0.28V at 150mA.
4. What is the output current capability?
The output current is 150mA (minimum).
5. What is the operating temperature range?
The operating temperature range is -40°C to 125°C.
6. What package does the LP2985-28DBVR use?
It uses the SOT-23-5 surface-mount package.
7. Is this LDO suitable for portable devices?
Yes, its low dropout voltage and compact size make it ideal for portable electronics.
8. Does it include overcurrent protection?
Yes, it includes standard overcurrent and thermal protection features.
9. Can it be used in automotive applications?
Yes, its wide temperature range and robust design make it suitable for automotive use.
10. What is the output voltage tolerance?
The output voltage tolerance is 1.5%.
