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The RT6300C/RT6300CH/RT6300D/RT6300DH is an integrated power management IC solution for LPDDR5 and LPDDR5X memory. This device provides two single buck voltage regulators VDD2H (RT6300C/ RT6300CH:1.065V/8A, RT6300D/RT6300DH:1.05V/8A) and VDDQ (0.52V or 0.32V/3A), one LDO VDD2L (0.92V/1.5A), and one load switch VDD1 (1.8V/1A). The RT6300C/RT6300CH/RT6300D/RT6300DH supports VDD2L and 1-bit VID to dynamically adjust the VDDQ output voltage, thus satisfying the requirements of LPDDR5/5X DVFSC and DVFSQ applications.The RT6300C/RT6300CH/RT6300D/RT6300DH 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 RT6300C/RT6300CH/RT6300D/RT6300DH 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 RT6300C/RT6300CH/RT6300D/RT6300DH 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.
RT6300C/RT6300CH/RT6300D/RT6300DH Typical Circuit
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<div class="spec-list"><ul class="lv1"><li>Wide Input Supply Range: 4.5V to 23V for HV Buck Converter </li><li>Four High-Efficiency Output Regulators: - VDD1 (Load Switch): 1.8V/1A - VDD2H (HV Buck Converter): RT6300C/RT6300CH:1.065V/8A, RT6300D/RT6300DH:1.05V/8A - VDD2L (LDO): 0.92V/1.5A - VDDQ (LV Buck Converter): 0.32V/3A or 0.52V/3A (Selectable by VSEL Pin) </li><li>12A Peak Output Current for VDD2H </li><li>Support DVFSC and DVFSQ for LPDDR5/5X </li><li>Compliant with LPDDR5/5X Power-On and Power-Off Sequences in JEDEC Standard </li><li>Protection Option: - RT6300C/RT6300D: Latch Mode - RT6300CH/RT6300DH: Hiccup Mode </li><li>Stable Operation with POSCAP and MLCC Capacitors </li><li>Fast Transient Response with ACOT<sup>®</sup> Control </li><li>Diode Emulation Mode (DEM) for Power Saving </li><li>Low R<sub>DS(ON)</sub> Internal Power MOSFETs </li><li>Current-Limit Protection </li><li>Output Undervoltage or Overvoltage Protection (UVP/OVP) </li><li>Input Undervoltage-Lockout (UVLO) </li><li>Over-Temperature Protection (OTP) </li><li>Power-Good Indicator </li></ul></div>
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<div class="spec-list"><ul class="lv1"><li>Laptop Computers </li><li>Tablet PCs </li><li>Networking Systems </li><li>Distributed Power Systems </li></ul></div>
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