Infineon BCR22PN: Low-Dropout Linear Regulator for General-Purpose Applications

The Infineon BCR22PN is a robust low-dropout (LDO) linear regulator designed to deliver stable and reliable performance across a wide array of general-purpose applications. As electronic systems become increasingly complex and power-sensitive, the demand for efficient voltage regulation continues to grow. This component stands out by offering a compact, cost-effective solution without compromising on key performance metrics.

Engineered with an NPN pass transistor, the BCR22PN is capable of supplying a continuous output current of up to 250 mA with a very low dropout voltage. This characteristic is crucial for battery-operated devices, where maximizing usable voltage range and extending battery life are paramount. The device operates with an input voltage range from 3.5 V to 42 V, making it exceptionally versatile for both industrial and consumer electronics, including automotive applications.

A significant advantage of this LDO is its high immunity to line and load transients, ensuring a stable output voltage even when the input voltage or output current experiences sudden changes. This stability is further enhanced by its internal current limiting and thermal shutdown protection, which safeguard the regulator and the downstream circuitry from damage under fault conditions. Furthermore, its low quiescent current makes it an excellent choice for power-conscious designs.

Housed in a space-saving SOT-143-4 package, the BCR22PN is ideal for applications where PCB real estate is limited. Its simple external circuit requirement—often needing just a pair of capacitors for operation—simplifies design-in and reduces overall system cost.

ICGOOODFIND: The Infineon BCR22PN is a highly versatile and resilient LDO regulator, offering a compelling blend of a wide input voltage range, robust protection features, and a compact form factor. It is an optimal choice for designers seeking a reliable voltage regulation solution for general-purpose and automotive applications.

Keywords: Low-Dropout Regulator, Voltage Regulation, General-Purpose Applications, Infineon BCR22PN, SOT-143-4 Package.