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The SY5889 is a power management IC (PMIC) for DDR5 CSODIMM/CUDIMM/SODIMM/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.SWAand 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,Temp Sensor and CKD on DIMM.SY5889 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/6 .5A Valley) 0.8V~2 .2V, 5mV/10mV step + offset; SWB (1phase, default 1.1V/6 .5A Valley) 0.8V~2.2V, 5mV/10mV step + offset; SWC (1 phase, default 1.8V/ 2.5A Valley) 1.5V~2.135V, 5mV step
SWA/BC VOUT Accuracy:±0.75% DC(FCCM)±2.5% DC+AC
FSW: 0.75Mhz to 1.5Mhz with 250Khz step
Support acoustic noise prevent operation
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
Support ADC fine resolution 31.25mA/31.25mW/125mA/125mW
VIN_OVP/VIN_UVP/SWA/SWB/SWC OCP/UVP
Over Temperature Protection
PWR_GOOD&GSI_n to Indicate Status
Compliant with JESD301-6/2 V1 .0
CKD Small Outline DIMM(CSODIMM)
CKD Un-Buffered DIMM(CUDIMM)
Other DDR5-Based Dual in-line Memory Modules(DIMM)
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网址：www.tkplusemi.com
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SY5889