ADP4100

ADP4100 Product Preview Programmable Multi-Phase Synchronous Buck Converter The ADP4100 is an integrated power control IC for VR11.1 applications. The ADP4100 can be programmed for 1−, 2−, 3−, 4−, 5− or 6−phase operation, allowing for the construction of up to six complementary buck switching stages. The ADP4100 supports PSI, which is a power state indicator and can be used to reduce number of operating phases at light loads. The ADP4100 is optimized for converting a 12 V main supply into the core supply voltage required by high performance Intel processors. It uses an internal 8−bit DAC to read the voltage identification (VID) code directly from the processor, which is used to set the output voltage between 0.375 V and 1.6 V. Features Supports Both VR11 and VR11.1 Specifications Digitally Programmable 0.375 V to 1.6 V Output Selectable 1−, 2−, 3−, 4−, 5− or 6−Phase Operation Fast−Enhanced PWM FlexModet TRDET to Improve Load Release Active Current Balancing Between All Output Phases Supports On−The−Fly (OTF) VID Code Changes Supports PSI − Power Saving Mode Short Circuit Protection with Latchoff Delay This is a Pb−Free Device Typical Applications Servers Desktop PC’s POLs (Memory) http://onsemi.com LFCSP48 CASE 932AD MARKING DIAGRAM ADP4100 JCPZ #YYWW XXXXX CCCCC xx = Device Code # = Pb−Free Package YYWW = Date Code XXX = Assembly Lot CCC = Country of Origin PIN ASSIGNMENT 48 VCC3 47 PWRGD 46 PSI 45 VID0 44 VID1 43 VID2 42 VID3 41 VID4 4...