onsemi MC78L15ACDR2G: 15V Positive Voltage Regulator LDO Technical Datasheet

The onsemi MC78L15ACDR2G is a monolithic integrated circuit designed as a positive voltage regulator capable of delivering a fixed 15V output at currents up to 100 mA. It is part of the popular 78L series of linear regulators, engineered to provide reliable performance for a wide range of applications. This device features internal current limiting, thermal shutdown, and safe-area compensation, making it remarkably robust and resistant to overload conditions.

Housed in a space-saving SOIC-8 package, this regulator is an ideal choice for compact PCB designs where board real estate is at a premium. Its operation requires only two external components—typically an input and an output capacitor—for stability, which simplifies circuit design and reduces the overall bill of materials. The MC78L15ACDR2G is designed to handle an input voltage range from 17V to 30V, maintaining a stable 15V output with a low 6.0 mV typical output noise voltage and a high 68 dB ripple rejection ratio. These characteristics make it exceptionally effective at filtering out unwanted AC ripple from the input supply, ensuring a clean and stable DC output.

A key feature of this regulator is its low standby current consumption, which enhances efficiency in always-on or battery-sensitive applications. The device is specified for operation over a junction temperature range of 0°C to +125°C, ensuring stable performance across industrial environments.

ICGOOODFIND: The onsemi MC78L15ACDR2G stands out as an exceptionally reliable and simple-to-use solution for deriving a stable 15V supply from a higher, unregulated voltage source. Its built-in protection features, minimal external component requirement, and compact package make it a versatile and robust choice for power management in low-current applications across consumer, industrial, and automotive electronics.

Keywords: Positive Voltage Regulator, 15V Output, SOIC-8 Package, Thermal Shutdown, Ripple Rejection