STMicroelectronics L7812CD2T-TR Linear Voltage Regulator
- Brand: STMicroelectronics
- Product Code: L7812CD2T-TR
- Availability: In Stock
$0.15
- Ex Tax: $0.15
Reliable Voltage Regulation for Demanding Applications
The STMicroelectronics L7812CD2T-TR Linear Voltage Regulator represents the pinnacle of stability and efficiency in power management solutions. Engineered for engineers and designers requiring consistent performance, this fixed-output linear regulator delivers precisely 12V with a robust 1.5A current capacity. Its D2PAK surface-mount package combines thermal efficiency with space-saving design, making it ideal for modern electronics where reliability and compact form factors are paramount.
Technical Excellence in Power Management
At the heart of this regulator lies STMicroelectronics' advanced bipolar technology, ensuring minimal voltage dropout while maintaining exceptional line and load regulation. With a maximum input voltage capability of 35V, the L7812CD2T-TR offers unparalleled flexibility in various power supply configurations. The device's 2V dropout voltage at 1A typical load enables efficient operation even in fluctuating input conditions, while its 8mA quiescent current ensures optimal power conservation in standby modes.
| Parameter | Specification |
|---|---|
| Output Voltage | 12V Fixed |
| Output Current | 1.5A Maximum |
| Input Voltage Range | Up to 35V |
| Thermal Protection | Integrated Over Temperature |
| Package Type | D2PAK (TO-263AB) |
Engineered for Real-World Performance
This regulator excels in harsh environments, operating flawlessly from 0°C to 125°C industrial temperature ranges. Its built-in protection features create a robust defense against common electrical faults: thermal shutdown safeguards against overheating, while internal current limiting prevents damage during short-circuit conditions. The device's 55dB PSRR (Power Supply Rejection Ratio) at 120Hz ensures clean, stable output even when powering sensitive analog circuits.
Designed for surface-mount assembly, the D2PAK package offers superior thermal dissipation through its exposed tab, allowing direct PCB mounting without additional heat sink requirements in most applications. This feature, combined with the device's inherent reliability, makes it a preferred choice for automotive systems, industrial controls, and consumer electronics demanding automotive-grade robustness.
Applications and Implementation
The L7812CD2T-TR finds its home in countless applications where stable 12V power rails are essential. From powering microcontroller units in smart home devices to regulating voltage in automotive infotainment systems, this regulator provides the foundation for reliable circuit operation. Designers appreciate its ease of use - requiring only input and output capacitors for stable operation - while its fixed voltage configuration eliminates the need for external resistor dividers.
When implementing this regulator in your design, consider the following best practices:
- Use low-ESR ceramic capacitors at both input and output
- Ensure adequate PCB copper area for thermal management
- Implement input protection diodes for inductive load scenarios
With STMicroelectronics' commitment to quality and the device's comprehensive protection features, the L7812CD2T-TR delivers decades of trouble-free service in even the most demanding applications. Its combination of performance, reliability, and ease of use continues to make it a staple component in power supply designs worldwide.
Tags: Power Management, Voltage Regulation, Electronic Components, Circuit Protection, Industrial Electronics