Overview
The L7812CV is a three-terminal positive voltage regulator from STMicroelectronics, part of the L78 series. This regulator is designed to provide a fixed output voltage of 12V and is housed in a TO-220-3 (TO-220AB) package. It is capable of delivering an output current up to 1.5A, making it suitable for a wide range of applications. The L7812CV features internal current limiting, thermal shut-down, and safe area protection, which enhance its reliability and durability. It can be used for local on-card regulation, eliminating the issues associated with single point regulation, and can also be configured with external components to achieve adjustable voltage and currents.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage - Max | 35 | V |
| Output Voltage Fixed | 12 | V |
| Dropout Voltage - Max | 2 | V |
| Output Current - Max | 1.5 | A |
| Tolerance | ±2% | |
| Operating Temp Range | 0°C to 125°C | |
| Regulator Topology | Fixed | |
| Quiescent Current | 8mA | |
| No. of Outputs | Single | |
| Output Noise | 75µV | |
| Load Regulation | 240mV | |
| Line Regulation | 240mV | |
| Package Style | TO-220-3 (TO-220AB) |
Key Features
- Output current up to 1.5A
- Thermal overload protection
- Short circuit protection
- Output transition SOA protection
- 2% output voltage tolerance
- Guaranteed in extended temperature range (0°C to 125°C)
- Internal current limiting and safe area protection
- Can be used with external components to obtain adjustable voltage and currents
Applications
The L7812CV is versatile and can be used in a variety of applications where a stable 12V voltage is required. It is particularly useful for local on-card regulation, eliminating the distribution problems associated with single point regulation. Common applications include power supplies, voltage regulators in electronic devices, and any system requiring a reliable and stable 12V power source.
Q & A
- What is the maximum input voltage for the L7812CV?
The maximum input voltage for the L7812CV is 35V.
- What is the fixed output voltage of the L7812CV?
The fixed output voltage of the L7812CV is 12V.
- What is the maximum output current of the L7812CV?
The maximum output current of the L7812CV is 1.5A.
- What type of protection does the L7812CV have?
The L7812CV has internal current limiting, thermal shut-down, and safe area protection.
- What is the operating temperature range of the L7812CV?
The operating temperature range of the L7812CV is 0°C to 125°C.
- What package style is the L7812CV available in?
The L7812CV is available in the TO-220-3 (TO-220AB) package style.
- Can the L7812CV be used for adjustable voltage and currents?
Yes, the L7812CV can be used with external components to obtain adjustable voltage and currents.
- What is the quiescent current of the L7812CV?
The quiescent current of the L7812CV is 8mA.
- What is the output noise voltage of the L7812CV?
The output noise voltage of the L7812CV is 75µV.
- What are the load and line regulation values for the L7812CV?
The load and line regulation values for the L7812CV are both 240mV.
