CS5323 Datasheet PDF - ON Semiconductor

Three-Phase Buck Controller with 5-Bit DAC

   The CS5323 is a three–phase step down controller that incorporates all control functions required to power next generation processors. 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.

FEATUREs
• Enhanced V2 Control Method
• 5–Bit DAC with 1.0% Tolerance
• Adjustable Output Voltage Positioning
• Programmable Frequency Set by Single Resistor
• 200 kHz to 800 kHz Operation (Per Phase)
• Current Sensed through Sense Resistors, or Buck Inductors
• Adjustable Current Sense Threshold
• Hiccup Mode Current Limit
• Over–Voltage Protection through Synchronous MOSFET’s
• Individual Current Limits for Each Phase
• On–Board Current Sense Amplifiers
• 3.3 V, 1.0 mA Reference Output
• 5.0 V and/or 12 V Operation
• On/Off Control (through COMP Pin)