CS5211 Datasheet - ON Semiconductor

CS5211 Low Voltage Synchronous Buck Controller

PIN NO. 1 PIN SYMBOL GATE(H) FUNCTION High Side Switch FET driver pin. Capable of delivering peak currents of 1.0 A. 2 BST Power supply input for the high side driver. 3 LGND Reference ground. All control circuits are referenced to this pin. IC substrate connection. 4 VFFB Input for the PW.

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 .

CS5211 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

CS5211_ONSemiconductor.pdf