NCP5332A

NCP5332A Two−Phase Buck Controller with Integrated Gate Drivers and 5−Bit DAC The NCP5332A is a second−generation, two−phase step down controller which incorporates all control functions required to power high performance processors and high current power supplies. Proprietary multi−phase architecture guarantees balanced load current distribution and reduces overall solution cost in high current applications. Enhanced V2™ control architecture provides the fastest possible transient response, excellent overall regulation, and ease of use. The NCP5332A is a second−generation PWM controller because it optimizes transient response by combining traditional Enhanced V 2 with an internal PWM ramp and fast−feedback directly from VCORE to the internal PWM comparator. These enhancements provide greater design flexibility, facilitate use and reduce output voltage jitter. The NCP5332A multi−phase architecture reduces output voltage and input current ripple, allowing for a significant reduction in filter size and inductor values with a corresponding increase in inductor current slew rate. This approach allows a considerable reduction in input and output capacitor requirements, as well as reducing overall solution size and cost. Features Enhanced V2 Control Method with Internal Ramp Internal PWM Ramp Fast−Feedback Directly from VCORE VRM 9.X DAC with 1.0% Accuracy Adjustable Output Voltage Positioning 4 On−Board Gate Drivers 200 kHz to 800 kHz Operation Set by Resistor Curr...