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The RT6300F/RT6300FH is an integrated power management IC solution for LPDDR5 and LPDDR5X memory. This device provides two single buck voltage regulators VDD2H (1.065V/8A) and VDDQ (0.52V or 0.32V/3A), one LDOVDD2L (0.92V/1.5A), and one load switch VDD1 (1.8V/1A). The RT6300F/RT6300FH 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 RT6300F/RT6300FH 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 RT6300F/RT6300FH 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 RT6300F/RT6300FH provides full protection functions, including the cycle-by-cycle current limit, OVP, UVP, input UVLO, and OTP. All functions are integrated in a WQFN3x3-19(FC) package. The recommended junction temperature range is −40°C to 125°C.
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RT6300F/RT6300FH Typical Circuit
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<div class="spec-list"><ul><li>Wide Input Supply Range: 4.5V to 23V for HV Buck Converter</li><li>Four High-Efficiency Output Regulators:<ul><li>VDD1 (Load Switch): 1.8V/1A</li><li>VDD2H (HV Buck Converter): 1.065V/8A</li><li>VDD2L (LDO): 0.92V/1.5A</li><li>VDDQ (LV Buck Converter): 0.32V/3A or 0.52V/3A (Selectable by VSEL Pin)</li></ul></li><li>12.5A Peak Output Current for VDD2H</li><li>4A Peak Output Current for VDDQ</li><li>Supports DVFSC and DVFSQ for LPDDR5/5X</li><li>Compliant with LPDDR5/5X Power-On and Power-Off Sequences per JEDEC Standards</li><li>Protection Options:<ul><li>RT6300F: Latch Mode</li><li>RT6300FH: Hiccup Mode</li></ul></li><li>Stable Operation with POSCAP and MLCC Capacitors</li><li>Fast Transient Response with ACOT® Control</li><li>Diode Emulation Mode (DEM) for Power Saving</li><li>Low RDS(ON) Internal Power MOSFETs</li><li>Current-Limit Protection</li><li>Output Undervoltage and 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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RT6300F/RT6300FH Ordering Information
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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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