STMICROELECTRONICS L7915ACV -15V Voltage Regulator, 1.5A, TO-220

The STMICROELECTRONICS L7915ACV is a robust 3-terminal fixed low-dropout (LDO) negative voltage regulator designed to provide stable -15V DC output. It enables reliable local on-card regulation, effectively eliminating the voltage distribution problems and noise associated with single-point regulation systems. As part of the L79 negative series, which corresponds to the popular L78 positive series, this regulator is perfectly suited for constructing symmetrical split-rail power supplies, offering design flexibility and enhanced performance.

Capable of delivering over 1.5A of output current when provided with adequate heat sinking, this component is built for demanding applications. Its comprehensive built-in protection features include thermal overload protection, short-circuit protection, and output transition safe operating area (SOA) protection, ensuring device longevity and system reliability even under fault conditions. The regulator maintains a tight output tolerance of ±2% at 25°C, guaranteeing consistent voltage delivery.

While engineered as a fixed-voltage regulator, the L7915ACV can be used with external components to create adjustable voltage and current outputs, providing additional versatility for custom circuit designs. Its through-hole TO-220 package ensures easy mounting and efficient heat transfer to an external heatsink, making it a staple in both prototyping and production environments.

Key Specifications

• Output Voltage: Fixed -15V
• Output Current: Up to 1.5A
• Input Voltage Range: -23V to -35V
• Dropout Voltage: 1.1V typical
• Polarity: Negative
• Package: TO-220, 3-pin through-hole
• Operating Temperature Range: 0°C to +125°C

With its combination of high current capacity, integrated protections, and proven reliability, the L7915ACV is an essential component for robust power management in a