NCP5322A

The NCP5322A 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. The features of NCP5322A are as follows: (1)Enhanced V2 Control Method with Internal Ramp; (2)Internal PWM Ramp; (3)Fast-Feedback Directly from VCORE; (4)5-Bit DAC with 1.0% Accuracy; (5)Adjustable Output Voltage Positioning; (6)4 On-Board Gate Drivers.

The following is about the absolute maximum ratings of NCP5322A: (1)Operating Junction Temperature: 150 °C; (2)Lead Temperature Soldering: Reflow: (SMD styles only): 230 peak °C; (3)Storage Temperature Range: -65 to +150 °C; (4)ESD Susceptibility (Human Body Model): 2.0 kV.

The electrical characteristics of the NCP5322A are: (1)Power Good Fault Delay: 60 s min, 120 s typ and 240 s max at CSREF = VDAC to VDAC±15% ; (2)Output Low Voltage: 0.25 V typ and 0.40 V max at CSREF = 1.0 V, IPWRGD = 4.0 mA; (3)Output Leakage Current: 0.1 A typ and 10 A max at CSREF = 1.45 V, PWRGD = 5.5 V; (4)Lower Threshold: -15% min, -12% typ and -9.0% max; (5)Upper Threshold: 9.0% min, 12% typ and 15% max.