onsemi NCP5218
The NCP5218 2−in−1 Notebook DDR Power Controller is specifically designed as a total power solution for notebook DDR memory system. This IC combines the efficiency of a PWM controller for the VDDQ supply with the simplicity of linear regulators for the VTT termination voltage and the buffered low noise reference. This IC contains a synchronous PWM buck controller for driving two external NFETs to form the DDR memory supply voltage (VDDQ).FEATURES
MARKING DIAGRAM 22 1 DFN22 MN SUFFIX CASE 506AF 1 NCP5218 AWLYYWW G●
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● Incorporates VDDQ, VTT Regulator, Buffered VREF Adjustable VDDQ Output VTT and VREF Track VDDQ/2 Operates from Single 5.0 V Supply Supports VDDQ Conversion Rails from 4.5 V to 24 V Power−saving Mode for High Efficiency at Light Load Integrated Power FETs with VTT Regulator Sourcing/Sinking 1.5 A DC and 2.4 A Peak Current Requires Only 20 mF Ceramic Output Capacitor for VTT Buffered Low Noise 15 mA VREF Output All External Power MOSFETs are N−channel <5.0 mA Current Consumption During Shutdown Fixed Switching Frequency of 400 kHz Soft−start Protection for VDDQ and VTT Undervoltage Monitor of Supply Voltage Overvoltage Protection and Undervoltage Protection for VDDQ Short−circuit Protection for VDDQ and VTT Thermal Shutdown Housed in DFN22 This is a Pb−Free Device NCP5218= Specific Device Code A = Assembly Location WL = Wafer Lot YY = Year WW = Work Week G = Pb−Free Package...