Infineon BCR10PN: Low-Drop Linear Regulator for General-Purpose Applications

The Infineon BCR10PN is a low-dropout (LDO) linear regulator designed to deliver reliable and stable power management for a broad spectrum of electronic applications. As a PNP transistor-based regulator, it is engineered to provide a fixed output voltage with a very low dropout voltage, making it an efficient solution for scenarios where the input voltage is only marginally higher than the desired output.

A key advantage of the BCR10PN is its extremely low dropout voltage, typically as low as 80 mV at a 100 mA load. This characteristic is crucial for battery-powered devices and energy-efficient systems, as it allows the regulator to continue providing a stable output even as the input voltage decays to a level very close to the output, thereby maximizing battery life and operational time. The device offers a fixed output voltage of 10 V with an output current capability of up to 150 mA, sufficient for powering microcontrollers, sensors, and other low-power ICs.

The regulator is housed in a compact, surface-mount SOT-143 package, which is ideal for space-constrained PCB designs. Its built-in features include short-circuit protection and thermal overload protection, safeguarding both the regulator and the downstream circuitry from damage under fault conditions. Furthermore, its minimal external component requirement—often just two capacitors—simplifies design-in and reduces the overall bill of materials (BOM) cost, accelerating time to market.

Typical applications span a wide range, including:

Automotive electronics (e.g., infotainment systems, sensors)

Consumer electronics

Industrial control systems

Power management for microprocessors and ASICs

ICGOOODFIND: The Infineon BCR10PN stands out as a robust and highly efficient LDO regulator. Its combination of a low dropout voltage, integrated protection features, and simple application circuit makes it an exceptionally versatile and reliable choice for designers seeking a straightforward power management solution for general-purpose applications.

Keywords: Low-Dropout Regulator, Power Management, Fixed Output Voltage, Thermal Protection, SOT-143 Package.