UA78M05QDCYRQ1
5V linear voltage regulators in compact SOT-223 package
Manufacturer： ti
series introduction
# Introduction to the UA78M05QDCYRQ1 Product Series
## 1. Overview
The UA78M05QDCYRQ1 is a highly reliable and efficient voltage regulator product series designed to meet the demanding requirements of various electronic applications. This series belongs to the family of fixed - voltage linear regulators, specifically offering a regulated output voltage of +5V. It is engineered to provide stable power supply in a wide range of operating conditions, making it an ideal choice for automotive, industrial, and consumer electronics applications.
## 2. Key Features
### 2.1 High - Quality Voltage Regulation
- **Precision Output**: The UA78M05QDCYRQ1 is capable of delivering a precise +5V output voltage with a very low tolerance. This high - precision regulation ensures that connected electronic components receive a stable power supply, which is crucial for their proper functioning. For example, in microcontroller - based systems, a stable 5V supply is necessary to maintain accurate data processing and communication.
- **Low Dropout Voltage**: It has a relatively low dropout voltage, which means it can maintain the regulated output voltage even when the input voltage is only slightly higher than the output voltage. This feature is particularly useful in battery - powered applications where the battery voltage gradually decreases over time.
### 2.2 Thermal Performance
- **Efficient Heat Dissipation**: The product is designed with excellent thermal characteristics. It can dissipate heat effectively, preventing overheating even under high - load conditions. This is achieved through its advanced packaging design and the use of high - quality semiconductor materials. For instance, in automotive electronics where components are often exposed to high - temperature environments, the ability to dissipate heat is essential for long - term reliability.
- **Thermal Shutdown Protection**: To further safeguard the device, it is equipped with thermal shutdown protection. If the temperature of the regulator exceeds a certain threshold, the device will automatically shut down to prevent damage. Once the temperature returns to a safe level, the regulator resumes normal operation.
### 2.3 Electrical Characteristics
- **Low Quiescent Current**: The UA78M05QDCYRQ1 consumes a very low quiescent current, which is the current drawn by the regulator when there is no load connected. This low power consumption makes it suitable for battery - powered applications, as it helps to extend the battery life.
- **High Ripple Rejection Ratio**: It has a high ripple rejection ratio, which means it can effectively suppress the ripple voltage present in the input power supply. This results in a clean and stable output voltage, which is beneficial for sensitive electronic components such as audio amplifiers and analog - to - digital converters.
### 2.4 Automotive - Grade Reliability
- **AEC - Q100 Qualified**: The UA78M05QDCYRQ1 is AEC - Q100 qualified, which is a set of automotive - grade reliability standards. This qualification ensures that the product can withstand the harsh operating conditions commonly found in automotive applications, such as high temperatures, vibrations, and electrical noise.
- **ESD Protection**: It is also equipped with electrostatic discharge (ESD) protection, which helps to prevent damage to the device from static electricity. This is important in automotive environments where ESD events can occur during assembly, maintenance, or normal operation.
## 3. Package and Pin Configuration
### 3.1 Package Type
The UA78M05QDCYRQ1 is available in a small - outline package, which offers several advantages. The small size allows for easy integration into compact circuit boards, making it suitable for space - constrained applications. Additionally, the package provides good thermal performance and mechanical stability.
### 3.2 Pin Configuration
- **Input Pin**: This pin is used to
Images for reference
SOT223-3L