Overview
The STMicroelectronics L78S12CV is a 3-terminal positive linear voltage regulator designed for fixed voltage regulation. This component is part of the L78S series, which is known for its robustness and versatility. The L78S12CV provides a fixed output voltage of 12V and can supply up to 2A of current, making it suitable for a wide range of applications. It features internal current limiting, thermal shutdown, and safe area protection, ensuring reliable operation under various conditions. The regulator is housed in a TO-220 package, which is convenient for through-hole mounting and provides good heat dissipation when adequate heat sinking is provided.
Key Specifications
| Attribute | Value |
|---|---|
| Brand | STMicroelectronics |
| Minimum Operating Temperature | 0 °C |
| Output Voltage | 12 V |
| Maximum Output Current | 2 A |
| Mounting Type | Through Hole |
| Output Type | Fixed |
| Number of Outputs | 1 |
| Height | 9.15 mm |
| Dimensions | 10.4 x 4.6 x 9.15 mm |
| Quiescent Current | 8 mA |
| Line Regulation | 240 mV |
| Load Regulation | 240 mV |
| Minimum Input Voltage | 15 V |
| Polarity | Positive |
| Package Type | TO-220 |
| Maximum Operating Temperature | +150 °C |
| Length | 10.4 mm |
| Maximum Input Voltage | 35 V |
| Width | 4.6 mm |
| Pin Count | 3 |
| Regulator Type | Linear Voltage |
Key Features
- Robust Protection: The L78S12CV features internal current limiting, thermal shutdown, and safe area protection, making it essentially indestructible under normal operating conditions.
- High Current Capability: It can deliver up to 2A of output current, making it suitable for applications requiring substantial power.
- Fixed Output Voltage: The regulator provides a fixed output voltage of 12V, eliminating the need for external components unless adjustable voltage is required.
- Local On-Card Regulation: This feature allows for local regulation on the card, which can help eliminate distribution problems associated with single-point regulation.
- Thermal Protection: The regulator includes thermal protection to prevent overheating and ensure reliable operation.
- Compact TO-220 Package: The TO-220 package is convenient for through-hole mounting and provides good heat dissipation when adequate heat sinking is provided.
Applications
The STMicroelectronics L78S12CV is versatile and can be used in a wide range of applications, including:
- Power Supplies: It is suitable for use in power supply units where a stable 12V output is required.
- Industrial Control Systems: The regulator's robust protection features make it ideal for industrial control systems that require reliable voltage regulation.
- Consumer Electronics: It can be used in various consumer electronics devices that need a stable and regulated voltage supply.
- Automotive Systems: The L78S12CV can be used in automotive systems where a reliable and stable voltage supply is crucial.
- Embedded Systems: It is suitable for use in embedded systems that require local on-card voltage regulation.
Q & A
- What is the output voltage of the L78S12CV?
The output voltage of the L78S12CV is 12V.
- What is the maximum output current of the L78S12CV?
The maximum output current of the L78S12CV is 2A.
- What type of package does the L78S12CV come in?
The L78S12CV comes in a TO-220 package.
- Does the L78S12CV have built-in protection features?
Yes, the L78S12CV features internal current limiting, thermal shutdown, and safe area protection.
- What is the minimum input voltage required for the L78S12CV?
The minimum input voltage required for the L78S12CV is 15V.
- Can the L78S12CV be used for adjustable voltage regulation?
Although designed primarily as a fixed voltage regulator, the L78S12CV can be used with external components to obtain adjustable voltages and currents.
- What is the maximum operating temperature of the L78S12CV?
The maximum operating temperature of the L78S12CV is +150 °C.
- Is the L78S12CV RoHS compliant?
Yes, the L78S12CV is RoHS compliant.
- What are the dimensions of the L78S12CV in the TO-220 package?
The dimensions of the L78S12CV in the TO-220 package are 10.4 x 4.6 x 9.15 mm.
- Can the L78S12CV provide local on-card regulation?
Yes, the L78S12CV can provide local on-card regulation, which helps eliminate distribution problems associated with single-point regulation.
