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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<sup>®</sup>) control architecture that provides ultra-fast transient response and further reduces the number of external components. In steady states, the ACOT<sup>®</sup> 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.
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<li class="mv5"> Wide Input Supply Range: 4.5V to 23V for HV Buck Converter<br /> </li><li class="mv5"> Three High-Efficiency Output Regulators:<br /> - VDD1 (Load Switch): 1.8V/1A<br /> - VDD2 (HV Buck Converter): 1.05V/8A<br /> - VDDQ (LV Buck Converter): 0.52V/3A<br /> </li><li class="mv5"> 12A Peak Output Current for VDD2<br /> </li><li class="mv5"> Compliant with LPDDR5/5X Power-On/Off Sequence in JEDEC Standard<br /> </li><li class="mv5"> Protection Option: <br /> - RT6301B: Latch Mode<br /> - RT6301BH: Hiccup Mode<br /> </li><li class="mv5"> Stable Operation with POSCAP and MLCC Capacitors<br /> </li><li class="mv5"> Fast Transient Response with ACOT<sup>®</sup> Control<br /> </li><li class="mv5"> Diode Emulation Mode (DEM) for Power Saving<br /> </li><li class="mv5"> Low R<sub>DS(ON)</sub> Internal Power MOSFETs<br /> </li><li class="mv5"> Current-Limit Protection<br /> </li><li class="mv5"> Output Undervoltage or Overvoltage Protection (UVP/OVP)<br /> </li><li class="mv5"> Input Undervoltage-Lockout (UVLO)<br /> </li><li class="mv5"> Over-Temperature Protection (OTP)<br /> </li><li class="mv5"> Power-Good Indicator</li>
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<li class="mv5"> Laptop Computers<br /> </li><li class="mv5"> Tablet PCs<br /> </li><li class="mv5"> Networking Systems<br /> </li><li class="mv5"> Distributed Power Systems</li>
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