onsemi Voltage Regulators - DC DC Switching Regulators NCP3155BDR2G

The NCP3155BDR2G is a DC/DC synchronous buck regulator designed to deliver up to 3 A of output current. It operates within an input voltage range of 4.7 V to 24 V and features an adjustable output voltage with a reference voltage of 0.8 V ± 1.0%. The device supports a high switching frequency of 1 MHz, allowing for smaller filter components and reduced board space. It includes integrated power switches and comprehensive fault protection mechanisms, such as current limit protection, undervoltage lockout, and output overvoltage and undervoltage detection. The regulator is housed in a compact SOIC-8 package and is suitable for various applications, including set-top boxes, DVD drives, LCD monitors, and telecom equipment. The NCP3155BDR2G also features a soft-start function, which is internally programmed for 1.2 ms, enhancing system stability during startup. The device is Pb-free, aligning with environmental standards.