NCP81147

NCP81147 Precise Low Voltage Synchronous Buck Controller with Power Saving Mode The NCP81147 is a simple single phase solution with differential phase current sensing, power saving operation, and gate drivers to provide accurately regulated power. The adaptive non overlap gate drive and power saving operation circuit provide a low switching loss and high efficiency solution for server, notebook, and desktop systems. A high performance operational error amplifier is provided to simplify compensation of the system. The NCP81147 features also include soft−start sequence, accurate overvoltage and over current protection, UVLO for VCC and VCCP, and thermal shutdown. Features High Performance Operational Error Amplifier Internal Soft−Start/Stop ±0.5% Internal Voltage Accuracy, 0.8 V voltage reference OCP accuracy, Four Re−entry Times Before Latch “Lossless” Differential Inductor Current Sensing Internal High Precision Current Sensing Amplifier Oscillat...