SY80003E Datasheet | Silergy

General Description The SY80003E high efficiency 2.2MHz synchronous buck converter operates over a wide input voltage range of 2.5V to 5.5V, and can deliver an output current up to 3A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 2.2MHz pseudo-constant switching frequency enables using small external inductor and capacitor values. The SY80003E uses advanced constant on-time and ripple-based control strategy to achieve fast transient response. It also provides cycle-by-cycle current limit protection, output under voltage protection and over temperature protection. Only the input and output capacitors, inductor, feedback resistor...