L7815CV Voltage Regulator: Circuit, Pinout, and Datasheet [Video&FAQ]
Fixed Tin L7815 PMIC 3 TO-220-3
The L7815CV is a positive voltage regulator ICs. This article mainly introduces circuit, pinout, datasheet and other information about STMicroelectronics L7815CV.

Voltage Regulator IC 7815 Tutorial with Experiments Haseeb Electronics
- L7815CV Description
- L7815CV Pinout
- L7815CV CAD Model
- L7815CV Features
- Specifications
- Parts with Similar Specs
- L7815CV Functional Block Diagram
- L7815CV Schematic Diagram
- L7815CV Application Circuits
- L7815CV Test Circuits
- L7815CV Alternative
- L7815CV Applications
- L7815CV Package
- L7815CV Manufacturer
- Trend Analysis
- Datasheet PDF
L7815CV Description
L7815CV Voltage Regulator, as L78 series, the series of three-terminal positive regulators comes in TO-220 , TO-220FP, D²PAK, and DPAK packages, as well as a variety of set output voltages, making it suitable for a wide range of applications.
These regulators can provide local on-card control, which eliminates the distribution issues that single point regulation causes. Internal current limiting, thermal shut-down, and safe area protection are all built into each kind, making it virtually unbreakable. They can deliver over 1 A output current if appropriate heat sinking is given. Although these devices are generally designed as fixed voltage regulators, they can be used in conjunction with external components to achieve variable voltage and currents.
L7815CV Pinout
The figure shows you the Pinout of L7815CV.

Pinout
L7815CV CAD Model
L7815CV Features
• Output current up to 1.5 A
• Output voltages of 5; 6; 8; 8.5; 9; 12; 15; 18; 24 V
• Thermal overload protection
• Short circuit protection
• Output transition SOA protection
• 2 % output voltage tolerance (A version)
• Guaranteed in the extended temperature range (A version)
Specifications
- TypeParameter
- Lifecycle Status
Lifecycle Status refers to the current stage of an electronic component in its product life cycle, indicating whether it is active, obsolete, or transitioning between these states. An active status means the component is in production and available for purchase. An obsolete status indicates that the component is no longer being manufactured or supported, and manufacturers typically provide a limited time frame for support. Understanding the lifecycle status is crucial for design engineers to ensure continuity and reliability in their projects.
ACTIVE (Last Updated: 7 months ago) - Factory Lead Time24 Weeks
- Contact Plating
Contact plating (finish) provides corrosion protection for base metals and optimizes the mechanical and electrical properties of the contact interfaces.
Tin - Mount
In electronic components, the term "Mount" typically refers to the method or process of physically attaching or fixing a component onto a circuit board or other electronic device. This can involve soldering, adhesive bonding, or other techniques to secure the component in place. The mounting process is crucial for ensuring proper electrical connections and mechanical stability within the electronic system. Different components may have specific mounting requirements based on their size, shape, and function, and manufacturers provide guidelines for proper mounting procedures to ensure optimal performance and reliability of the electronic device.
Through Hole - Mounting Type
The "Mounting Type" in electronic components refers to the method used to attach or connect a component to a circuit board or other substrate, such as through-hole, surface-mount, or panel mount.
Through Hole - Package / Case
refers to the protective housing that encases an electronic component, providing mechanical support, electrical connections, and thermal management.
TO-220-3 - Number of Pins3
- Weight4.535924g
- Operating Temperature
The operating temperature is the range of ambient temperature within which a power supply, or any other electrical equipment, operate in. This ranges from a minimum operating temperature, to a peak or maximum operating temperature, outside which, the power supply may fail.
0°C~125°C - Packaging
Semiconductor package is a carrier / shell used to contain and cover one or more semiconductor components or integrated circuits. The material of the shell can be metal, plastic, glass or ceramic.
Tube - Tolerance
In electronic components, "tolerance" refers to the acceptable deviation or variation from the specified or ideal value of a particular parameter, such as resistance, capacitance, or voltage. It indicates the range within which the actual value of the component can fluctuate while still being considered acceptable for use in a circuit. Tolerance is typically expressed as a percentage or a specific value and is important for ensuring the accuracy and reliability of electronic devices. Components with tighter tolerances are more precise but may also be more expensive. It is crucial to consider tolerance when selecting components to ensure proper functionality and performance of the circuit.
5% - JESD-609 Code
The "JESD-609 Code" in electronic components refers to a standardized marking code that indicates the lead-free solder composition and finish of electronic components for compliance with environmental regulations.
e3 - Part Status
Parts can have many statuses as they progress through the configuration, analysis, review, and approval stages.
Active - Moisture Sensitivity Level (MSL)
Moisture Sensitivity Level (MSL) is a standardized rating that indicates the susceptibility of electronic components, particularly semiconductors, to moisture-induced damage during storage and the soldering process, defining the allowable exposure time to ambient conditions before they require special handling or baking to prevent failures
1 (Unlimited) - Number of Terminations3
- Terminal Position
In electronic components, the term "Terminal Position" refers to the physical location of the connection points on the component where external electrical connections can be made. These connection points, known as terminals, are typically used to attach wires, leads, or other components to the main body of the electronic component. The terminal position is important for ensuring proper connectivity and functionality of the component within a circuit. It is often specified in technical datasheets or component specifications to help designers and engineers understand how to properly integrate the component into their circuit designs.
SINGLE - Number of Functions1
- Base Part Number
The "Base Part Number" (BPN) in electronic components serves a similar purpose to the "Base Product Number." It refers to the primary identifier for a component that captures the essential characteristics shared by a group of similar components. The BPN provides a fundamental way to reference a family or series of components without specifying all the variations and specific details.
L7815 - Pin Count
a count of all of the component leads (or pins)
3 - Number of Outputs1
- Voltage - Input (Max)
Voltage - Input (Max) is a parameter in electronic components that specifies the maximum voltage that can be safely applied to the input of the component without causing damage. This parameter is crucial for ensuring the proper functioning and longevity of the component. Exceeding the maximum input voltage can lead to electrical overstress, which may result in permanent damage or failure of the component. It is important to carefully adhere to the specified maximum input voltage to prevent any potential issues and maintain the reliability of the electronic system.
35V - Output Voltage
Output voltage is a crucial parameter in electronic components that refers to the voltage level produced by the component as a result of its operation. It represents the electrical potential difference between the output terminal of the component and a reference point, typically ground. The output voltage is a key factor in determining the performance and functionality of the component, as it dictates the level of voltage that will be delivered to the connected circuit or load. It is often specified in datasheets and technical specifications to ensure compatibility and proper functioning within a given system.
15V - Output Type
The "Output Type" parameter in electronic components refers to the type of signal or data that is produced by the component as an output. This parameter specifies the nature of the output signal, such as analog or digital, and can also include details about the voltage levels, current levels, frequency, and other characteristics of the output signal. Understanding the output type of a component is crucial for ensuring compatibility with other components in a circuit or system, as well as for determining how the output signal can be utilized or processed further. In summary, the output type parameter provides essential information about the nature of the signal that is generated by the electronic component as its output.
Fixed - Max Output Current
The maximum current that can be supplied to the load.
1.5A - Output Configuration
Output Configuration in electronic components refers to the arrangement or setup of the output pins or terminals of a device. It defines how the output signals are structured and how they interact with external circuits or devices. The output configuration can determine the functionality and compatibility of the component in a circuit design. Common types of output configurations include single-ended, differential, open-drain, and push-pull configurations, each serving different purposes and applications in electronic systems. Understanding the output configuration of a component is crucial for proper integration and operation within a circuit.
Positive - Quiescent Current
The quiescent current is defined as the current level in the amplifier when it is producing an output of zero.
8mA - Output Voltage 1
Output Voltage 1 is a parameter commonly found in electronic components such as voltage regulators, power supplies, and amplifiers. It refers to the voltage level that is produced or delivered by the component at a specific output terminal or pin. This parameter is crucial for determining the performance and functionality of the component in a circuit. The specified output voltage should meet the requirements of the connected devices or components to ensure proper operation and compatibility. It is important to carefully consider and verify the output voltage 1 specification when selecting and using electronic components in a design or application.
15V - Number of Regulators
A regulator is a mechanism or device that controls something such as pressure, temperature, or fluid flow. The voltage regulator keeps the power level stabilized. A regulator is a mechanism or device that controls something such as pressure, temperature, or fluid flow.
1 - Min Input Voltage
The parameter "Min Input Voltage" in electronic components refers to the minimum voltage level that must be applied to the component for it to operate within its specified parameters. This value is crucial as providing a voltage below this minimum threshold may result in the component malfunctioning or not functioning at all. It is important to adhere to the specified minimum input voltage to ensure the proper operation and longevity of the electronic component. Failure to meet this requirement may lead to potential damage to the component or the overall system in which it is used.
17V - Protection Features
Protection features in electronic components refer to the built-in mechanisms or functionalities designed to safeguard the component and the overall system from various external factors or internal faults. These features are crucial for ensuring the reliability, longevity, and safety of the electronic device. Common protection features include overvoltage protection, overcurrent protection, reverse polarity protection, thermal protection, and short-circuit protection. By activating these features when necessary, the electronic component can prevent damage, malfunctions, or hazards that may arise from abnormal operating conditions or unforeseen events. Overall, protection features play a vital role in enhancing the robustness and resilience of electronic components in diverse applications.
Over Temperature, Short Circuit - Voltage Dropout (Max)
Voltage Dropout (Max) refers to the minimum voltage difference between the input and output of a voltage regulator or linear power supply needed to maintain proper regulation. It indicates the maximum allowable voltage drop across the device for it to function effectively without dropout. If the input voltage falls below this threshold, the output voltage may drop below the specified level, leading to potential operational issues for connected components. This parameter is critical for ensuring stable and reliable power delivery in electronic circuits.
2V @ 1A Typ - PSRR
PSRR stands for Power Supply Rejection Ratio. It is a measure of how well a device, such as an amplifier or a voltage regulator, can reject variations in the power supply voltage. A high PSRR value indicates that the device is able to maintain its performance even when the power supply voltage fluctuates. This parameter is important in ensuring stable and reliable operation of electronic components, especially in applications where the power supply voltage may not be perfectly regulated. A good PSRR helps to minimize noise and interference in the output signal of the device.
54dB (120Hz) - Dropout Voltage
Dropout voltage is the input-to-output differential voltage at which the circuit ceases to regulate against further reductions in input voltage; this point occurs when the input voltage approaches the output voltage.
2V - Dropout Voltage1-Nom
Dropout Voltage1-Nom is a parameter commonly found in voltage regulators and power management ICs. It refers to the minimum voltage difference required between the input voltage and the output voltage for the regulator to maintain regulation. In other words, it is the minimum voltage drop that the regulator can handle while still providing a stable output voltage. This parameter is important to consider when designing power supply circuits to ensure that the regulator can operate within its specified voltage range and maintain proper regulation under varying load conditions.
2V - Min Output Voltage
Min Output Voltage refers to the lowest voltage level that an electronic component, such as a voltage regulator or power supply, can provide reliably under specified conditions. It indicates the minimum threshold required for proper operation of connected devices. Operating below this voltage may lead to device malfunction or failure to operate as intended.
15V - Power Supply Rejection Ratio (PSRR)
Power Supply Rejection Ratio (PSRR) is a measure of how well an electronic component, such as an operational amplifier or voltage regulator, can reject changes in its supply voltage. It indicates the ability of the component to maintain a stable output voltage despite fluctuations in the input supply voltage. A higher PSRR value signifies better performance in rejecting noise and variations from the power supply, leading to improved signal integrity and more reliable operation in electronic circuits. PSRR is typically expressed in decibels (dB).
54dB - Nominal Output Voltage
Nominal Output Voltage refers to the specified or intended voltage level that an electronic component or device is designed to provide as output under normal operating conditions. It is a crucial parameter that indicates the expected voltage level that the component will deliver to the connected circuit or load. This value is typically specified by the manufacturer and is important for ensuring proper functionality and compatibility within a system. It is important to note that the actual output voltage may vary slightly due to factors such as load variations, temperature changes, and other environmental conditions.
15V - Height9.15mm
- Length10.4mm
- Width4.6mm
- REACH SVHC
The parameter "REACH SVHC" in electronic components refers to the compliance with the Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH) regulation regarding Substances of Very High Concern (SVHC). SVHCs are substances that may have serious effects on human health or the environment, and their use is regulated under REACH to ensure their safe handling and minimize their impact.Manufacturers of electronic components need to declare if their products contain any SVHCs above a certain threshold concentration and provide information on the safe use of these substances. This information allows customers to make informed decisions about the potential risks associated with using the components and take appropriate measures to mitigate any hazards.Ensuring compliance with REACH SVHC requirements is essential for electronics manufacturers to meet regulatory standards, protect human health and the environment, and maintain transparency in their supply chain. It also demonstrates a commitment to sustainability and responsible manufacturing practices in the electronics industry.
No SVHC - Radiation Hardening
Radiation hardening is the process of making electronic components and circuits resistant to damage or malfunction caused by high levels of ionizing radiation, especially for environments in outer space (especially beyond the low Earth orbit), around nuclear reactors and particle accelerators, or during nuclear accidents or nuclear warfare.
No - RoHS Status
RoHS means “Restriction of Certain Hazardous Substances” in the “Hazardous Substances Directive” in electrical and electronic equipment.
ROHS3 Compliant - Lead Free
Lead Free is a term used to describe electronic components that do not contain lead as part of their composition. Lead is a toxic material that can have harmful effects on human health and the environment, so the electronics industry has been moving towards lead-free components to reduce these risks. Lead-free components are typically made using alternative materials such as silver, copper, and tin. Manufacturers must comply with regulations such as the Restriction of Hazardous Substances (RoHS) directive to ensure that their products are lead-free and environmentally friendly.
Lead Free
Parts with Similar Specs
- ImagePart NumberManufacturerPackage / CaseNumber of PinsNumber of OutputsMax Output CurrentMin Input VoltageVoltage - Input (Max)Min Output VoltageNominal Output VoltageOutput VoltageDropout VoltageView Compare
L7815CV
TO-220-3
3
1
1.5 A
17 V
35V
15 V
15 V
15 V
2 V
TO-220-3
3
1
1.5 A
17 V
35V
14.7 V
15 V
15 V
2 V
TO-220-3
3
1
1.5 A
14 V
35V
12 V
12 V
12 V
2 V
TO-220-3
3
1
1.5 A
20 V
35V
18 V
18 V
18 V
2 V
L7815CV Functional Block Diagram
L7815CV Schematic Diagram
L7815CV Application Circuits
L7815CV Test Circuits
L7815CV Alternative
| Part Number | Description | Manufacturer |
| OM7815IHPBFPOWER CIRCUITS | 15V FIXED POSITIVE REGULATOR, MSFM3, HERMETIC SEALED, METAL, TO-257AA, 3 PIN | Infineon Technologies AG |
L7815CV Applications
• Power Management
• Linear Voltage Regulators
L7815CV Package
L7815CV Manufacturer
STMicroelectronics is a global electronics and semiconductors company headquartered in Plan-les-Ouates , Switzerland, near Geneva. In 1987, the firm was formed by the merger of two government-owned semiconductor companies: France's "Thomson Semiconductors" and Italy's "SGS Microelettronica." It is known as "ST" and is Europe's largest semiconductor chip manufacturer in terms of revenue. While STMicroelectronics' corporate headquarters and EMEA regional offices are located in Geneva, the holding company, STMicroelectronics N.V., is based in the Netherlands.
Coppell, Texas is where the company's US headquarters are located. The Asia-Pacific region 's headquarters are in Singapore, while Japan and Korea's operations are based in Tokyo. Shanghai is where the company's China regional headquarters are located.
STMicroelectronics technology can be found in places where microelectronics has a positive impact on people's lives. ST chips with the latest advancements are found in a wide range of devices, including automobiles and key fobs, large factory machinery and data center power supplies, washing machines and hard drives, cellphones and toothbrushes. We assist our customers in making these gadgets smarter, more energy-efficient, more connected, safer, and secure.
Trend Analysis
Datasheet PDF
- Datasheets :
- PCN Assembly/Origin :
What are the roles of LM317N and L7815CV in the voltage regulator circuit?
These two integrated blocks play the role of voltage stabilization. LM317N output DC voltage is adjustable. L7815CV outputs +15V DC voltage.
How to use the digital meter to judge the quality of L7815CV?
Measure output voltage.
What is the difference between L7815CV and L7915CV?
The former outputs +15V to ground, and the latter outputs -15V to ground. Both are 1.5A output current.
What is the difference between L7815CV and 7815CT?
There is no difference, but the brand is different. The former is an ST model and has a special appearance. Only ST has this package, and the latter is a more common TO-220 package.
What type of regulator comes in TO-220?
L7815CV Voltage Regulator.
What kind of control can L7815CV Voltage Regulator provide?
Local on-card control.
What can L7815CV Voltage Regulator deliver if appropriate heat sinking is given?
Over 1 A output current.
What type of regulators are L7815CV Voltage Regulator generally designed as?
Fixed voltage regulators.
What can L7815CV Voltage Regulator be used in conjunction with?
External components.
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