Nisshinbo NJW1871 boost/flyback switching regulator controller
Summary
It is equipped with an N-channel MOSFET driver circuit, making it ideal for applications requiring high output currents. The devices high switching frequency not only mitigates AM band interference but also facilitates the use of compact inductors, contributing to reduced system size. The RUN pin offers multiple functionalities, including power management and standby mode activation, with startup voltage adjustable via two divider resistors. To ensure operational safety, the NJW1871A incorporates several protective measures against overvoltage, overcurrent, undervoltage lockout, and thermal overload conditions. Its Hiccup overcurrent protection mechanism facilitates automatic recovery post-overload, enhancing durability and preventing overheating.