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The SY5888 is a power management IC (PMIC) for DDR5 SODIMM and UDIMM, and integrates three high efficiency Buck DC-DC converters, two LDOs, and flexible interface.
The device provides three channels buck outputs: SWA/SWB/SWC. SWA and SWB default are single phase and can be configured dual phase with current share operation.
VOUT_1.8V/VOUT_1.0V LDOs are intended to power supply SPD hub and Temp Sensor on DIMM. SY5888 is available FC-QFN28 3mmx4mm package, and is halogen and lead free, compliant with RoHS.
VIN/VIN_Bulk Supply Range: 4.25V to 5.5V
Three Buck Regulators: SWA (1 phase,default 1.1V,max 6A Valley)； 0.8V~2.2V，5mV/10mV step + offset； SWB (1 phase,default 1.1V, max 6A Valley)
0.8V~2.2V，5mV/10mV step + offset； SWC (1 phase,default 1.8V, max 2A Valley)；1.5V~2.135V，5mV step
DCDC VOUT Accuracy:±0.75% DC(FCCM); ±2.5% DC+AC
FSW：0.75Mhz to 1.25Mhz with 250Khz step
SWA/B Dual Phase Operation Configure
Two Linear Regulators： VOUT_1.8V: 1.7V to 2.0V with 0.1V step; VOUT_1.0V: 0.9V to 1.2V with 0.1V step
Max to 1.0Mhz I2C Interface
Support I2C 1.0V to 3.3VIO
Max to 1.0VIO 12.5MHz I3C Interface
Support Intel XMP3.0 OC Spec
Support LDOs Power Reset
Built-in MTP Non-Volatile Memory
Support Secure&Programmable Mode
Integrate ADC For Vol/Current/Power Consumption Monitor
VIN_OVP/SWA/SWB/SWC OCP/UVP
Over Temperature Protection
PWR_GOOD&GSI_n to Indicate Status
Compliant with JESD301-2 V1.0.3
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SY5888