The RTQ5136 is an integrated solution for DDR5 SODIMM and UDIMM power management IC. This device provides 3 single-phase converters and 2 LDOs. The RTQ5136 is available in a WQFN-28L 3x4 (FC) package.


Key Spec.
Status Active
Vin (min) (V) 4.25
Vin (max) (V) 5.5
Number of Channels 5
Number of Buck Converters 3
Number of LDO Regulators 2
Application PC
Features Adjustable Current Limit;Adjustable Frequency;Adjustable Soft-Start;Built-in Bootstrap Switch;COT Control;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;I2C;Internal Compensation;OCP;OVP;Power Good;Stable with Ceramic Capacitor;UVP
Package Type WQFN3x4-28(FC)
  • VIN_Bulk with Input Supply Range : 4.25V to 5.5V
  • High Integration :
    ► 4A/4A/1A Converters (SWA, SWB, SWC)
    ► 25mA/20mA LDOs (VLDO_1.8V, VLDO_1.0V)
  • Support I2C and I3C Slave Control
  • MTP Registers with Secured R/W Access
  • 0.75% Converter Output Accuracy
  • Integrated Sequencing Control for DDR5 VR on DIMM Platform
  • Support Pure MLCC Output Capacitor Stable
  • Common ADC Channels (5 Default and 1 User Selectable)
  • Output Current, Voltage and Power Measurement and Reporting Mechanism
  • Error Log Counter and Data Storage (NVM)
  • Programmable and DIMM Specific Registers for Customization
  • Programmable-Diagnostic Mode for Debug and Validation
  • Complete Protection Mechanisms
  • VIN_Bulk Input Supply OVP
  • OTP, OVP, UVP, OCP for Each Rails
  • General Status Interrupt Function
  • Power Good Indicator
  • Overclocking support