·       Low R_DS(ON) for Internal MOSFETs: 170mΩ Top, 100mΩ Bottom

·       Wide Input Voltage Range: 2.5V ~ 5.5V

·       Up to 1A Output Current

·       ±1.5% 0.6V Reference

·       PFM Light Load Operation

·       Internal Soft-Start Limits the Inrush Current

·       1.5MHz Switching Frequency Minimizes the External Components

·       Constant Off-time and Peak Current Mode Control to Achieve Fast Transient Responses

·       100% Dropout Operation

·       Output Auto Discharge Function

·       Power Good Indicator for SY80091

·       Cycle-by-Cycle Peak Current Limit Protection

·       Hic-Cup Mode Output Under Voltage Protection

·       Auto-Recovery Mode Over Temperature Protection

·       Input Under Voltage Lockout (UVLO)

·       RoHS-Compliant and Halogen-Free

·       Compact Package: SOT563

·       Moisture Sensitivity Level (MSL): 1

The SY80091x high efficiency 1.5MHz synchronous buck converter operates over a wide input voltage range of 2.5V to 5.5V, and can deliver an output current up to 1A. It integrates a top MOSFET and a bottom MOSFET with very low RDS(ON) to minimize conduction loss. The 1.5MHz pseudo-constant switching frequency enables using small external inductor and capacitor values.