STMicroelectronics L7912CD2T-TR -12V 1.5A Linear Voltage Regulator D2PAK
- Brand: STMicroelectronics
- Product Code: L7912CD2T-TR
- Availability: In Stock
$0.25
- Ex Tax: $0.25
STMicroelectronics L7912CD2T-TR: High-Performance Negative Linear Voltage Regulator
The STMicroelectronics L7912CD2T-TR is a precision negative linear voltage regulator engineered to deliver reliable voltage stabilization for demanding industrial and automotive applications. Designed with a fixed -12V output and a maximum output current of 1.5A, this D2PAK-packaged regulator combines robust performance with advanced protection features, making it an ideal choice for power-sensitive circuits in harsh environments.
Key Features for Demanding Applications
Operating from a maximum input voltage of -35V, the L7912CD2T-TR maintains stable output regulation even under fluctuating power conditions. Its low dropout voltage of 1.1V (typical at 1A) ensures efficient operation in low-voltage systems, while the 3mA quiescent current minimizes power consumption during standby modes. The integrated over-temperature and short-circuit protection mechanisms safeguard both the regulator and connected components from electrical stress, enhancing system longevity.
This surface-mount device (SMD) utilizes the TO-263AB package format with a reinforced thermal pad for optimal heat dissipation. The regulator's 60dB PSRR (Power Supply Rejection Ratio) at 120Hz effectively rejects input noise, making it particularly suitable for audio amplification circuits and precision analog systems where signal purity is critical.
| Parameter | Specification |
|---|---|
| Output Voltage | Fixed -12V |
| Max Input Voltage | -35V |
| Output Current | 1.5A |
| Dropout Voltage | 1.1V @ 1A (Typ) |
| Protection Features | Over Temperature, Short Circuit |
| Operating Temperature | 0°C to 125°C |
Industrial and Automotive Power Solutions
Engineered for mission-critical applications, this voltage regulator meets the rigorous demands of industrial automation systems, automotive electronics, and telecommunications infrastructure. The L7912CD2T-TR's wide operating temperature range (-40°C to +150°C) ensures reliable performance in extreme environmental conditions. Its RoHS-compliant packaging and tape-and-reel format support automated PCB assembly processes while maintaining environmental sustainability standards.
When compared to conventional linear regulators, the L7912CD2T-TR offers superior thermal stability through its advanced CMOS process technology. The device's inherent design minimizes output voltage variation across load and line transients, providing consistent power delivery for sensitive downstream components such as microcontrollers, sensors, and analog-to-digital converters.
Design Flexibility and System Integration
The regulator's negative voltage configuration simplifies power supply design in systems requiring symmetrical power rails, such as operational amplifier circuits and motor control applications. Its compatibility with standard 0.1μF input/output capacitors reduces BOM costs while maintaining stability. Design engineers benefit from the regulator's inherent simplicity, requiring minimal external components for implementation while delivering industrial-grade reliability.
Tags: Power Management, Surface Mount Technology, Industrial Electronics, Automotive Components, Voltage Stabilization