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CS5211EDR14-CS5211GD14
Low Voltage Synchronous Buck Controller
CS5211
Low Voltage Synchronous
Buck Controller
The CS5211 is a low voltage synchronous buck controller. It
contains all required circuitry for a synchronous buck converter using
external N–Channel MOSFETs. High current internal gate drivers are
capable of driving high gate capacitance of low RDS(on) NFETs for
better efficiency. The V2 control architecture is used to achieve
unmatched transient response, the best overall regulation and the
simplest loop compensation. The CS5211 is in a 14–pin package to
allow the designer added flexibility.
The CS5211 provides overcurrent protection, undervoltage lockout,
Soft Start and built in adaptive nonoverlap. The CS5211 also provides
adjustable fixed frequency range of 150 kHz to 750 kHz. This gives
the designer more flexibility to make efficiency and component size
compromises. The CS5211 will operate over a 4.5 V to 14 V range
using either single of dual input voltage.
Features• Switching Regulator Controller N–Channel Synchronous Buck DesignV2 Control Topology 200 ns Transient Response Programmable Fixed Frequency of 150 kHz–750 kHz 1.0 V 1.5% Internal Reference Lossless Inductor Sensing Overcurrent Protection Hiccup Mode Short Circuit Protection Programmable Soft Start 40 ns GATE Rise and Fall Times (3.3 nF Load) 70 ns Adaptive FET Nonoverlap Time Differential Remote Sense Capability System Power Management 5.0 V or 12 V Operation Undervoltage Lockout On/Off Control Through Use of the COMP Pin
