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Controllers | NCP5332A
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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 V2 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.
- 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
- Current Sensed through Buck Inductors or Sense Resistors
- Hiccup Mode Current Limit
- Individual Current Limits for Each Phase
- On-Board Current Sense Amplifiers
- 3.3 V, 1.0 mA Reference Output
- 5 V and 12 V, or 12 V Only Operation
- On/Off Control (through Soft Start Pin)
- Power Good Output with Internal Delay
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