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The RT6301B/RT6301BH is an integrated power management IC solution for LPDDR5 and LPDDR5X memory. This device provides two single buck voltage regulators VDD2 (1.05V/8A) and VDDQ (0.52V/3A), and one load switch VDD1 (1.8V/1A).The RT6301B/RT6301BH adopts Advanced Constant On-Time (ACOT®) control architecture that provides ultra-fast transient response and further reduces the number of external components. In steady states, the ACOT® operates at a nearly constant switching frequency across line, load, and output voltage ranges and simplifies the EMI filter design.The RT6301B/RT6301BH operates in diode emulation mode (DEM) under the light load condition, offering optimal light load efficiency. It also supports multiple operational modes, S0, S3, and S4/5, controlled by the EN/EN_VDDQ control inputs.The RT6301B/RT6301BH provides full protection functions, including the cycle-by-cycle current limit, OVP, UVP, input UVLO, and OTP.All functions are integrated in a WQFN-19L 3x3 (FC) package. The recommended junction temperature range is -40°C to 125°C.

Applications

  • Laptop Computers
  • Tablet PCs
  • Networking Systems
  • Distributed Power Systems
Key Spec.
RT6301B RT6301BH
Status Active Active
Vin (min) (V) 3;4.5 3;4.5
Vin (max) (V) 23;5.5 23;5.5
Number of Channels 3 3
Number of Buck Converters 2 2
Number of Boost Converters 0 0
Number of Negative Outputs 0 0
Number of LED Drivers 0 0
Number of LDO Regulators 0 0
Application PC PC
Features ACOT Control;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;Internal Compensation;OCP;OVP;Power Good;Stable with Ceramic Capacitor;UVP ACOT Control;Built-in Bootstrap Switch;Cycle-by-Cycle Current Limit;Diode Emulation Mode;Enable Input;Fast Transient Response;Internal Compensation;OCP;OVP;Power Good;Stable with Ceramic Capacitor;UVP
Package Type WQFN3x3-19(FC) WQFN3x3-19(FC)
Features
  • Wide Input Supply Range: 4.5V to 23V for HV Buck Converter
  • Three High-Efficiency Output Regulators:
    - VDD1 (Load Switch): 1.8V/1A
    - VDD2 (HV Buck Converter): 1.05V/8A
    - VDDQ (LV Buck Converter): 0.52V/3A
  • 12A Peak Output Current for VDD2
  • Compliant with LPDDR5/5X Power-On/Off Sequence in JEDEC Standard
  • Protection Option:
    - RT6301B: Latch Mode
    - RT6301BH: Hiccup Mode
  • Stable Operation with POSCAP and MLCC Capacitors
  • Fast Transient Response with ACOT® Control
  • Diode Emulation Mode (DEM) for Power Saving
  • Low RDS(ON) Internal Power MOSFETs
  • Current-Limit Protection
  • Output Undervoltage or Overvoltage Protection (UVP/OVP)
  • Input Undervoltage-Lockout (UVLO)
  • Over-Temperature Protection (OTP)
  • Power-Good Indicator
Please confirm with our distributor or sales representative for actual stock status.
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