CS5301 Series

Three-Phase Buck Controller with Integrated Gate Drivers and Power Good

Catalog

Three-Phase Buck Controller with Integrated Gate Drivers and Power Good

Part	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Package / Case	Package / Case	Output Configuration	Control Features	Clock Sync	Frequency - Switching [Max]	Frequency - Switching [Min]	Supplier Device Package	Output Phases	Number of Outputs	Mounting Type	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Synchronous Rectifier	Output Type	Topology	Function
ON Semiconductor CS5301GDWR32G	70 °C	0 °C	0.295 in	7.5 mm	32-SOIC	Positive	Current Limit Frequency Control Power Good		800 kHz	250 kHz	32-SOIC	3	3	Surface Mount	20 V	4.3 V		Transistor Driver	Buck	Step-Down

Catalog

Three-Phase Buck Controller with Integrated Gate Drivers and Power Good

Key Features

• Enhanced V2Control Method

• 5-Bit DAC with 1% Accuracy

• Adjustable Output Voltage Positioning

• 6 On-Board Gate Drivers

• 200 kHz to 800 kHz Operation Set by Resistor

• Current Sensed through Buck Inductors, Sense Resistors, or V-S Control

• Hiccup Mode Current Limit

• 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)

• Power Good Output

• Pb-Free Package is Available

Description

The CS5301 is a three-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 V 2 control architecture provides the fastest possible transient response, excellent overall regulation, and ease of use.The CS5301 multi-phase 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.