SY21249C1 Datasheet (Silergy) - Synchronous Step-Down Regulator

SY21249C1, Synchronous Step-Down Regulator

The SY21249C1 high-efficiency synchronous stepdown DC/DC regulator is capable of delivering 11A current over a wide input voltage range of 5.5V to 24V.

To minimize conduction loss, it integrates a main switch and a synchronous switch with very low RDS(ON).

It operates at a pseudoconstant frequency o

SY21249C1 Features

* 5.5

* 24V Input Voltage Range

* Up to 11A Output Current 100mA LDO Current

* Low RDS(ON) for Internal Switches: 17mΩ Top, 7.5mΩ Bottom

* Integrated 1.5Ω Bypass Switch

* COT Ripple-Based Control to Achieve Fast Transient Responses

* Soft-Start Inrush Current Limit