onsemi NCP5203
The NCP5203 2−in−1 DDR Power Controller is a complete power solution for an ACPI compliant high current DDR memory system. This IC combines the efficiency of a PWM controller for the VDDQ supply with the simplicity of linear regulator for the VTT termination voltage. The NCP5203 contains a synchronous PWM buck controller for driving two external NFETs to form the DDR memory supply voltage (VDDQ).| Part No. | NCP5203 |
|---|---|
| Datasheet | NCP5203 Download |
| Manufacturer |  onsemi |
| Description | 2-in-1 DDR Power Controller |
| Buy | Stock & Price |
FEATURES
MARKING DIAGRAM 18 1 18−LEAD QFN, 5 x 6 mm MN SUFFIX CASE 505 1 NCP5203 AWLYYWW●
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● Supports DDR I and DDR II Incorporates VDDQ, VTT Regulators Operates from Single 5 V Supply VTT Regulator includes Integrated Power FETs Sourcing/Sinking up to 2.0 A All External Power MOSFETs are N−Channel Adjustable VDDQ Adjustable VTT Fixed Switching Frequency of 300 kHz for VDDQ in S0 Fixed Switching Frequency of 600 kHz for VDDQ in S3 Soft−Start Protection for VDDQ Undervoltage Monitor of 5VDUAL Short−Circuit Protection for VDDQ and VTT Thermal Shutdown Housed in QFN−18 Pb−Free Package is Available* A WL YY WW = Assembly Location = Wafer Lot = Year = Work Week PIN CONNECTIONS VDDQEN VTTEN PGOOD REFSNS FBVTT AGND SS COMP FBDDQ 1 2 3 4 5 6 7 8 9 18 17 16 15 14 13 12 11 10 VDDQ VTT PGND BST BGDDQ TGDDQ 5VDUAL SWDDQ OCDDQ Typical
APPLICATIONS
● DDR Memory Supply and Termination Voltage● Active Termination Busses (SSTL−2, SSTL−3) ORDERING INFORMATION Device NCP5203MNR...
