STMICROELECTRONICS L78M12CDT-TR Linear Voltage Regulator, Fixed, 12V 500mA, TO-

The STMICROELECTRONICS L78M12CDT-TR is a three-terminal, positive fixed linear voltage regulator designed to provide local on-card power supply regulation. This technology eliminates the common distribution problems associated with relying on a single, centralised point of regulation, leading to more stable and reliable system performance.

Engineered for durability, this regulator incorporates several key internal protection features. These include advanced current limiting, thermal shutdown, and safe operating area (SOA) protection. This robust design makes the component highly resilient and essentially indestructible under normal operating conditions, safeguarding both the regulator and the circuitry it supplies.

While its primary function is as a fixed voltage regulator, the device offers flexibility. It can be used in conjunction with external components to create adjustable voltage and current supplies, expanding its potential applications beyond basic regulation tasks. Its protection suite is comprehensive, featuring thermal overload protection, short-circuit protection, and output transition SOA protection, all guaranteed across an extended operating temperature range.

Primary Applications

• Automotive Systems: Ideal for providing stable voltage rails to sensors, control units, and infotainment systems within vehicles.
• Power Management: Perfect for use in a wide array of electronic devices and embedded systems where a clean, regulated 12V supply is required from a higher input voltage.

Key Specifications

• Output Type: Fixed Voltage
• Nominal Output Voltage: 12V
• Input Voltage Range: 19V to 35V
• Maximum Output Current: 500mA
• IC Package: TO-252-3 (DPAK)
• Mounting Type: Surface Mount (SMD)
• Pin Count: 3 Pins
• Operating Temperature Range: 0°C to +150°C
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