UA78M05CDCY
5V 500mA fixed positive linear voltage regulators in SOT-223 package
Manufacturer： ['rochester', 'ti']
series introduction
# Introduction to the UA78M05CDCY Product Series
## 1. Overview
The UA78M05CDCY belongs to a well - established family of voltage regulators. Voltage regulators are crucial components in electronic circuits as they ensure a stable output voltage regardless of variations in the input voltage or load current. This particular product series is designed to provide a fixed +5V output voltage, which is widely used in a vast array of electronic applications.
## 2. Key Features
### 2.1 Fixed Output Voltage
The most prominent feature of the UA78M05CDCY is its ability to deliver a precise +5V output voltage. This fixed voltage is essential for powering various integrated circuits, microcontrollers, and other digital components that require a stable 5V power supply to function correctly. For example, many microcontroller development boards, such as the Arduino Uno, rely on a 5V power source, and the UA78M05CDCY can be used to provide this stable voltage.
### 2.2 High Current Capability
It can handle a moderate amount of load current. While the exact current - handling capacity may vary depending on the specific operating conditions, it is typically capable of supplying enough current to power multiple low - power components simultaneously. This makes it suitable for small - to medium - scale electronic projects where multiple devices need to be powered from a single voltage regulator.
### 2.3 Thermal Protection
The UA78M05CDCY is equipped with thermal protection circuitry. In case the device starts to overheat due to excessive load or high ambient temperatures, the thermal protection mechanism kicks in. It automatically reduces the output current or shuts down the regulator to prevent damage to the device. This feature enhances the reliability and longevity of the voltage regulator, especially in applications where the operating environment may be harsh.
### 2.4 Short - Circuit Protection
Another important safety feature is short - circuit protection. If the output of the regulator is accidentally short - circuited, the device will limit the current flow to a safe level. This protects both the voltage regulator and the connected electronic components from damage caused by excessive current.
## 3. Electrical Specifications
### 3.1 Input Voltage Range
The UA78M05CDCY can accept a wide range of input voltages. Typically, the input voltage should be at least a few volts higher than the output voltage (e.g., around 7 - 35V). This wide input voltage range allows it to be used in various power supply systems, whether it is a battery - powered application or a system powered by a mains - derived power supply.
### 3.2 Output Voltage Tolerance
The output voltage of the UA78M05CDCY is maintained within a tight tolerance. Usually, the output voltage variation is within a few percentage points of the nominal +5V value. This high level of accuracy ensures that the connected electronic components receive a stable and reliable power supply.
### 3.3 Line and Load Regulation
- **Line Regulation**: It refers to the ability of the regulator to maintain a constant output voltage when the input voltage changes. The UA78M05CDCY has good line regulation characteristics, meaning that even if the input voltage fluctuates within its specified range, the output voltage remains relatively stable.
- **Load Regulation**: This parameter describes how well the regulator can maintain a constant output voltage as the load current changes. The UA78M05CDCY offers excellent load regulation, ensuring that the output voltage remains stable even when the load on the regulator varies.
## 4. Package and Pin Configuration
### 4.1 Package Type
The UA78M05CDCY is available in a specific package type, which is designed to facilitate easy mounting on printed circuit boards (PCBs). The package
Images for reference
SOT223-3L
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