RT2852BH

® RT2852BH 3A, 18V, Synchronous Step-Down Converter General Description The RT2852BH is a high efficiency, monolithic synchronous step-down DC-DC converter that can deliver up to 3A output current from a 4.5V to 18V input supply. The RT2852BH current-mode architecture with external compensation allows the transient response to be optimized over a wide range of loads and output capacitors. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault condition protections include output under-voltage protection, output over-voltage protection, and over-temperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. Applications  High Performance Point of Load Regulation  Notebook Computers  High Density and Distributed Power Systems Features  Low RDS(ON) Power MOSFET Switches 46mΩ/36mΩ  Input Voltage Range : 4.5V to 18V  Adjustable Switching Frequency : 200kHz to 1.2MHz  Current-Mode Control  Synchronous to External Clock : 200kHz to 1.2MHz  Accurate Voltage Reference 0.8V ± 1.25%, Over −40°C to 105°C  Monotonic Start-Up into Pre-biased Outputs  Adjustable Soft-Start  Power Good Indicator  Under-Voltage and Over-Voltage Protection  Input Under-Voltage Lockout Ordering Information RT2852BH Package Type QW : WQFN-14AL 3.5x3.5 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) Note : Ri...