CS5421 ,Dual Out-of-Phase SynchronousBuck Controller with Remote SenseELECTRICAL CHARACTERISTICS (continued) (0°C < T < 70°C; 0°C < T < 125°C; R = 30.9 k, C = 0.1 μF, A ..
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CS5422 ,Dual Out-of-Phase Synchronous Buck Controller with Current LimitELECTRICAL CHARACTERISTICS (0°C < T < 70°C; 0°C < T < 125°C; R = 30.9 k, C = 0.1 μF, A J OSC COMP ..
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CS5421
Dual Out-of-Phase SynchronousBuck Controller with Remote Sense
CS5421
Dual Out-of-Phase
Synchronous Buck
Controller with Remote
Sense
The CS5421 is a dual N–channel synchronous buck regulator
controller. It contains all the circuitry required for two independent
buck regulators and utilizes the V2 control method to achieve the
fastest possible transient response and best overall regulation, while
using the least number of external components. The CS5421 features
out–of–phase synchronization between the channels, reducing the
input filter requirement. The CS5421 also provides undervoltage
lockout, Soft Start, built in adaptive FET non–overlap and remote
sense capability. The part is available in a 16 Lead SO Narrow package
allowing the designer to minimize solution size.
Features•V2 Control Topology 150 ns Transient Response Programmable Soft Start 25 ns Gate Rise and Fall Times (with 1.0 nF load) 40 ns Adaptive FET Nonoverlap Time 100% Duty Cycle for Enhanced Transient Response Internal Slope Compensation 1.0 V 0.8% and 2.0% Error Amplifier References 150 kHz to 750 kHz Programmable Frequency Operation Switching Frequency Set by Single Resistor Out–Of–Phase Synchronization Between the Channels Reduces the
Input Filter Requirement Undervoltage Lockout On/Off Control Through Use of the COMP Pins
