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The CS5303 is a threephase step down controller which incorporates all control functions required to power high performance processors and high current power supplies. Proprietary multiphase architecture guarantees balanced load current distribution and reduces overall solution cost in high current applications. Enhanced V2TM control architecture provides the fastest possible transient response,excellent overall regulation, and ease of use.
The CS5303 multiphase architecture reduces output voltage and input current ripple, allowing for a significant reduction in inductor values and 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.
CS5303 Maximum Ratings
Rating
Value
Unit
Operating Junction Temperature
150
°C
Storage Temperature Range
65 to 150
°C
ESD Susceptibility (Human Body Model)
2.0
KV
Lead Temperature Soldering: Reflow:(SMD styles only)(Note1.)
230 peak
°C
1. 60 second maximum above 183°C. *The maximum package power dissipation must be observed.
CS5303 Features
• Enhanced V2 Control Method • 5Bit DAC with 1.0% Accuracy • Adjustable Output Voltage Positioning • 6 OnBoard Gate Drivers • 200 kHz to 800 kHz Operation Set by Resistor • Current Sensed through Buck Inductors, Sense Resistors,or VS Control • Hiccup Mode Current Limit • Individual Current Limits for Each Phase • OnBoard 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)