CS5212

CS5212 Low Voltage Synchronous Buck Controller The CS5212 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 V2t control architecture is used to achieve unmatched transient response, the best overall regulation and the simplest loop compensation. Additionally, the CS5212 provides overcurrent protection, undervoltage lockout, soft−start, built−in adaptive non−overlap, and an adjustable fixed frequency range of 150 kHz to 750 kHz, which gives the designer more flexibility to make efficiency and component size trade offs. The CS5212 will also operate over a 3.1 V to 7.0 V range using either single or dual input voltage. Features Switching Regulator Controller − N−Channel Synchronous Buck Design − V2 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 − Available in Industrial and Commerical Temperature Grades System Power Management − 3.3 V Operation − Undervoltage Lockout − On/Off Control Through Use of the COMP Pin Pb−Free Packages are Availa...