CS5422 Series

Dual Out-of-Phase Synchronous Buck Controller with Current Limit

Catalog

Dual Out-of-Phase Synchronous Buck Controller with Current Limit

Part	Package / Case [custom]	Package / Case	Package / Case [custom]	Output Type	Control Features	Function	Clock Sync	Output Phases	Output Configuration	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Topology	Frequency - Switching [Min]	Frequency - Switching [Max]	Synchronous Rectifier	Supplier Device Package	Duty Cycle (Max) [Max]	Number of Outputs	Mounting Type
ON Semiconductor CS5422GDWFR24	7.5 mm	24-SOIC	0.295 in	Transistor Driver	Frequency Control	Step-Down		2	Positive	70 °C	0 °C	7.8 V	16 V	Buck	150 kHz	600 kHz		24-SOIC	100 %	2	Surface Mount

Catalog

Dual Out-of-Phase Synchronous Buck Controller with Current Limit

Key Features

• V2 Control Topology

• Hiccup Mode Overcurrent Protection

• 150 ns Transient Response

• Programmable Soft Start

• 100% Duty Cycle for Enhanced Transient Response

• 150 kHz to 600 kHz Programmable Frequency Operation

• Switching Frequency Set by Single Resistor

• Out-Of-Phase Synchronization Between the Channels Reduces the Input Filter Requirement

• Undervoltage Lockout

• Internally Fused Leads available in 24 Lead SO Wide Package

Description

The CS5422 is a dual N-channel synchronous buck regulator controller. It contains all the circuitry required for two independent buck regulators and utilizes the V2control method to achieve the fastest possible transient response and best overall regulation, while using the least number of external components. The CS5422 features out-of-phase synchronization between the channels, reducing the input filter requirement. The CS5422 also provides undervoltage lockout, Soft Start, built in adaptive FET non-overlap and hiccup mode overcurrent protection. The part is available in a 16 Lead SO Narrow or 24 Lead Fused SO Wide package allowing the designer to minimize solution size.