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The RTQ5152 is an integrated power management IC (PMIC) solution for gen1 DDR5 MRDIMM applications. This device provides four single Buck voltage regulators (SWA, SWB, SWC, and SWD) and 3 LDOs (VLDO_1.0V, VLDO_1.8V, and VBIAS). Among the four voltage regulators, the SWA and SWB can operate in either single-phase mode or dual-phase mode. Moreover, the RTQ5152 supports a selectable interface (I2C or I3C Basic) to fit various application environments. A complete protection mechanism is also embedded for safe power distribution and the corresponding fault events can be recorded by the registers as well as CAMP and GSI_n open-drain indicators. The RTQ5152 is available in a VQFN-35L 5x5 (FC) package. The recommended junction temperature range is from -40°C to 125°C.
RTQ5152 Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Meet JEDEC DDR5 PMIC5020 Specification </li><li>Wide Input Supply Range: 4.25V to 15V </li><li>VIN_MGMT Input Supply Range: 3V to 3.6V </li><li>High Integration: - Four High-Efficiency Buck Converters:- SWA: I<sub>TDC</sub> = 8.5A, I<sub>MAX</sub> = 10A- SWB: I<sub>TDC</sub> = 8.5A, I<sub>MAX</sub> = 10A- SWC: I<sub>TDC</sub> = 10A, I<sub>MAX</sub> = 11.5A- SWD: I<sub>TDC</sub> = 3A, I<sub>MAX</sub> = 3.5A - Three LDOs- VLDO_1.8V: I<sub>MAX</sub> = 25mA- VLDO_1.0V: I<sub>MAX</sub> = 20mA- VBIAS for internal use only </li><li>Programmable Dual-phase and Single-phase Regulator for SWA and SWB </li><li>Efficiency Up to 92% for Each Buck Converter </li><li>Fast Transient Response with A<sup>2</sup>RCOT<sup>®</sup> </li><li>Dual-phase DEM Operation Ensures Good Light Load Efficiency and Good Transient Response </li><li>0.75% Converter Output Accuracy </li><li>Automatic Input Supply Switchover for LDOs </li><li>Telemetry for Output Current, Voltage, and Power </li><li>Persistent Error Log Registers with Non-Volatile Memory. </li><li>Programmable and DIMM Specific Registers for Customization </li><li>Write Protect Mode and Programmable of Operation </li><li>Flexible Open Drain IO (I<sup>2</sup>C) and Push-Pull (I3C Basic) IO Support </li><li>Smart Protection Unit Provides Best Protection Shutdown Sequence Control </li><li>Complete Protection Mechanisms - VIN_Bulk Input Supply OVP - OVP, UVP, OCP, HCW for Each Rail - High Temp Warning and OTP </li></ul></div>
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RTQ5152 Ordering Information
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<div class="spec-list"><ul class="lv1"><li>Typical Gen1 DDR5 MRDIMM </li></ul></div>
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