SY8121B Datasheet - Silergy

SY8121B 1.2MHz Synchronous Step Down Regulator

SY8121B develops high efficiency synchronous stepdown DC-DC converter capable of delivering 2A load current. SY8121B operates over a wide input voltage range from 4.5V to 18V and integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. SY8121B always ope.

SY8121B Features

* Low RDS(ON) for internal switches (top/bottom):170/160 mΩ

* 4.5-18V input voltage range

* 2A load current capability

* Instant PWM architecture to achieve fast transient responses

* Internal softstart limits the inrush current

* 2% 0.6V reference

SY8121B Datasheet (2.74 MB)