Silergy SY8286B
The SY8286B develops a high efficiency synchronous step-down DC/DC regulator with 3.3V fixed output voltage and 6A current rating. The device integrates main switch and synchronous switch with very low RDS(ON) to minimize the conduction loss. The SY8286B also integrates a 3.3V/100mA LDO with bypass switch and individual enable control.GENERAL DESCRIPTION
The SY8286B operates over a wide input voltage range from 4V to 23V. The DC/DC regulator adopts the instant PWM architecture to achieve fast transient responses for high step down applications and high efficiency at light loads. In addition, it operates at pseudo-constant frequency of 600kHz under heavy load conditions to minimize the size of inductor and capacitor. Ordering Information SY8286 □(□□)□ Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY8286BRAC QFN3×3-20 --FEATURES
● Low RDS(ON) for Internal Switches (Top/Bottom): 38/19 mΩ● Wide Input Voltage Range: 4-23V
● 3.3V LDO with Individual Enable Control and Bypass Switch
● Integrated Bypass Switch: 1.5Ω
● Instant PWM Architecture to Achieve Fast Transient Responses
● Internal 1.2ms Soft-start Limits the Inrush Current
● Pseudo-constant Frequency: 600kHz.
● 6A Output Current Capability
● +/-1.5% Output Voltage Accuracy
● Power Good Indicator
● Output Discharge Function
●...