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RTQ5152

DDR5 Server VR on DIMM PMIC

RTQ5152
New

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.

应用

  • Typical Gen1 DDR5 MRDIMM

主要规格

RTQ5152
Status Active
Vin (min) (V) 4.25
Vin (max) (V) 15
Number of Channels 6
Number of Buck Converters 4
Number of Boost Converters 0
Number of Negative Outputs 0
Number of LED Drivers 0
Number of LDO Regulators 2
Application Industrial
Features Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Fast Transient Response;I2C;Industrial;Internal Compensation;OCP;OVP;Power Good;SCP;Stable with Ceramic Capacitor;UVP
Package Type VQFN5x5-35(FC)

关键特性

  • Meet JEDEC DDR5 PMIC5020 Specification

  • Wide Input Supply Range: 4.25V to 15V

  • VIN_MGMT Input Supply Range: 3V to 3.6V

  • High Integration:
    - Four High-Efficiency Buck Converters:
         - SWA: ITDC = 8.5A, IMAX = 10A
         - SWB: ITDC = 8.5A, IMAX = 10A
         - SWC: ITDC = 10A, IMAX = 11.5A
         - SWD: ITDC = 3A, IMAX = 3.5A
    - Three LDOs
         - VLDO_1.8V: IMAX = 25mA
         - VLDO_1.0V: IMAX = 20mA
         - VBIAS for internal use only

  • Programmable Dual-phase and Single-phase Regulator for SWA and SWB

  • Efficiency Up to 92% for Each Buck Converter

  • Fast Transient Response with A2RCOT®

  • Dual-phase DEM Operation Ensures Good Light Load Efficiency and Good Transient Response

  • 0.75% Converter Output Accuracy

  • Automatic Input Supply Switchover for LDOs

  • Telemetry for Output Current, Voltage, and Power

  • Persistent Error Log Registers with Non-Volatile Memory.

  • Programmable and DIMM Specific Registers for Customization

  • Write Protect Mode and Programmable of Operation

  • Flexible Open Drain IO (I2C) and Push-Pull (I3C Basic) IO Support

  • Smart Protection Unit Provides Best Protection Shutdown Sequence Control

  • Complete Protection Mechanisms
    - VIN_Bulk Input Supply OVP
    - OVP, UVP, OCP, HCW for Each Rail
    - High Temp Warning and OTP

Application Notes

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