STMicroelectronics L78M12ABDT-TR Linear Voltage Regulator
- Brand: STMicroelectronics
- Product Code: L78M12ABDT-TR
- Availability: In Stock
$0.09
- Ex Tax: $0.09
Reliable Voltage Regulation for Demanding Applications
The STMicroelectronics L78M12ABDT-TR stands as a testament to precision engineering in linear voltage regulation technology. Designed for engineers seeking stability and performance in power management solutions, this fixed-output regulator delivers consistent 12V regulation with up to 500mA output current capacity. Its robust TO-252-3 (DPAK) package combines industrial-grade durability with surface-mount convenience, making it ideal for modern electronic designs requiring space-efficient yet reliable power solutions.
Key Technical Specifications
Operating within a 4.75V to 35V input voltage range, the L78M12ABDT-TR maintains precise 12V output through its integrated feedback network. The device's 55dB PSRR (Power Supply Rejection Ratio) at 120Hz ensures minimal noise interference, while its 6mA quiescent current consumption balances efficiency with performance. Built-in protection features safeguard against over-current, over-temperature, and short-circuit conditions, guaranteeing reliable operation in harsh environments.
| Parameter | Specification |
|---|---|
| Output Voltage | 12V (Fixed) |
| Maximum Input Voltage | 35V |
| Output Current | 500mA |
| Operating Temperature | -40°C to 125°C |
| Package Type | TO-252-3 (DPAK) |
Advanced Protection and Thermal Management
Engineered with STMicroelectronics' proprietary thermal shutdown circuitry, the L78M12ABDT-TR automatically regulates its operating temperature to prevent damage from thermal overload. This intelligent protection system works in tandem with the integrated current limiting and short-circuit protection to create a comprehensive safety net for critical applications. The device's surface-mount design enables efficient heat dissipation through PCB traces while maintaining compatibility with automated assembly processes.
With its wide operating temperature range (-40°C to 125°C), this voltage regulator excels in automotive, industrial, and consumer electronics applications where environmental stability is paramount. The TO-252-3 package's low thermal resistance (35°C/W typical) ensures reliable performance even under full load conditions, while the device's minimal dropout voltage characteristic enhances efficiency in low-voltage systems.
Design Flexibility and Application Versatility
While optimized for fixed 12V output applications, the L78M12ABDT-TR's design philosophy emphasizes adaptability. Its compatibility with standard external capacitors allows designers to tailor input/output filtering characteristics to specific application requirements. This flexibility makes it suitable for a wide range of implementations including:
• Industrial control systems • Automotive electronics • Consumer appliances • Power supply modules • Battery-powered devices
The device's tape-and-reel packaging format ensures seamless integration into high-volume production environments, while its RoHS-compliant construction meets modern environmental regulations. With a typical dropout voltage of just 1.7V at maximum load, this regulator maintains efficiency advantages in systems where input voltage fluctuations are common.
Tags: Power Management, Voltage Regulation, Industrial Electronics, Automotive Components