SY8133

SY8133 High Efficiency 400KHz, 3A,16V Input Synchronous Step Down Regulator Preliminary SPECIFICATION General Description The SY8133 is a high efficiency 400 KHz synchronous step-down DC-DC converters capable of delivering 3A output current. SY8133 operates over a wide input voltage range from 4V to 15V and integrate main switch and synchronous switch with very low Rds(on) to minimize the conduction loss. Low output voltage ripple and small external inductor and capacitor sizes are achieved with 400KHz switching frequency. Applications Set Top Box Portable TV Access Point Router DSL Modem LCD TV Features low Rds(on) for internal switches (top/bottom) 120/80 mΩ, 4-15V input voltage range 400KHz switching frequency Internal softstart limits the inrush current 2% 0.6V reference RoHS Compliant and Halogen Free Compact package: SO8 with exposed paddle Ordering Information SY8133□(□□)□ Temperature Code C: -40°C~85°C Package Code: FC: SO8E Spec Code Typical Applications VIN CIN IN BS LX L VOUT GND FB EN R1 COUT R2 Figure 1 SY8133Rev. #.0.2 Silergy Corp. Confidential- for Customer Use Only 1 Pinout (top view) SY8133 Pin Name BS IN LX GND FB EN NC (SO8E) Top Mark: AAWxyz (device code: AAW, x=year code, y=week code, z= lot number code) Pin Number 5 7 6 4 1 8 2,3 Pin Description Boot-Strap Pin. Supply high side gate driver. Decouple this pin to LX pin with 0.1uF ceramic cap. Input pin. Decouple this pin to GND pin with at least 1uF ceramic cap ...