L7815CD2T
15V 1.5A linear voltage regulators in D2PAK package
Manufacturer： stm
series introduction
# Introduction to the L7815CD2T Product Series
## 1. Overview
The L7815CD2T belongs to a well - established family of voltage regulators. These regulators are essential components in electronic circuits, providing a stable and reliable DC voltage output. The "L78" series is widely recognized in the electronics industry for its high - quality performance, robustness, and cost - effectiveness. The "15" in the model number indicates that this particular regulator is designed to output a fixed voltage of +15V, which is a common requirement in many electronic applications.
## 2. Key Features
### 2.1 Fixed Output Voltage
The L7815CD2T offers a precise and stable output voltage of +15V. This fixed voltage output is crucial for powering various electronic components that require a specific voltage level to operate correctly. For example, many integrated circuits, sensors, and small - scale electronic devices are designed to work with a 15V power supply. The regulator ensures that the output voltage remains within a tight tolerance range, typically ±5% under normal operating conditions, providing a reliable power source for sensitive electronics.
### 2.2 High Current Capability
This product series can handle relatively high output currents. It is capable of supplying up to 1.5A of continuous current, making it suitable for powering multiple components simultaneously or devices with relatively high power requirements. For instance, it can be used to power small - to - medium - sized amplifiers, which often need a stable 15V power supply with sufficient current to drive the output stages.
### 2.3 Thermal Protection
The L7815CD2T is equipped with built - in thermal protection. When the device's temperature rises above a certain threshold due to excessive power dissipation or high ambient temperatures, the thermal protection circuit 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 regulator, especially in applications where the operating environment may be hot or where the device is operating at or near its maximum power rating.
### 2.4 Short - Circuit Protection
Another important safety feature of the L7815CD2T is short - circuit protection. In the event of a short - circuit at the output, the regulator limits the current flow to a safe level. This protects both the regulator itself and the connected electronic components from damage caused by excessive current. The short - circuit protection mechanism ensures that the device can withstand accidental short - circuits without permanent failure, adding an extra layer of security to the overall electronic system.
### 2.5 Low Dropout Voltage
The dropout voltage of the L7815CD2T is relatively low. Dropout voltage is the minimum difference between the input voltage and the output voltage required for the regulator to maintain a stable output. A low dropout voltage means that the regulator can operate effectively even when the input voltage is only slightly higher than the output voltage. This is beneficial in battery - powered applications or systems where the available input voltage is limited, as it allows for more efficient use of the power source.
## 3. Technical Specifications
### 3.1 Input Voltage Range
The L7815CD2T typically requires an input voltage in the range of 17V to 35V. This wide input voltage range provides flexibility in different power supply configurations. For example, it can be used with a variety of power sources, such as AC - DC power adapters or battery packs, as long as the input voltage falls within this specified range.
### 3.2 Output Voltage Tolerance
As mentioned earlier, the output voltage of the L7815CD2T is regulated to +15V with a tolerance of ±5%. This means that the
Images for reference
TO-263
Image Preview
Image Preview