Silergy SY8893L
The SY8893L is a high efficiency 1.2MHz synchronous step down DC/DC regulator, which is capable of delivering up to 3A output currents. It can operate over a wide input voltage range from 2.5V to 5.5V and integrate main switch and synchronous switch with very low RDS (ON) to minimize the conduction loss. The SY8893L integrates the reliable latch-off function when output over voltage, output under voltage or thermal shutdown happens.GENERAL DESCRIPTION
The SY8893L is in a space saving, low profile SOT563 package. Ordering Information SY8893 □(□□)□ Tempera ture Code Pa cka ge Code Optional Spec Code Ordering Number Package type Note SY8893LARC SOT563 -- High Efficiency, 1.2MHz, 3A Synchronous Step Down RegulatorFEATURES
● 2.5V to 5.5V Input Voltage Range● 50μA Low Quiescent Current
● Low RDS(ON) for Internal Switches (Top/Bottom) 100mΩ /60mΩ
● High Switching Frequency 1.2MHz Minimizes the External Components
● Internal Soft-start Limits the Inrush Current
● 100% Dropout Operation
● Power Good Indicator
● Reliable Latch off Function When:
● Output Under Voltage
● Thermal Shutdown
● Output Voltage>120% of Regulated Voltage
● Output Auto Discharge Function
● RoHS Compliant and Halogen Free
● Compact Package: SOT563
APPLICATIONS
● Set Top Box● USB Dongle
● Media Player
● Smart phone Typical
APPLICATIONS
VIN: 2.5-5.5V CIN 10μF/10V RPG 100k ON/ OFF IN LX PG FB EN GND L1:0.47µH VOUT:1.8V RH 100k Cff 22pF RL 49.9k COUT 22μF/6.3V Figure1.