RT7299B

Reference Design Sample & Design Tools Buy ® RT7299B 8A, 18V, Synchronous Step-Down Converter General Description The RT7299B is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 8A output current from a 4.5V to 18V input supply. The RT7299B 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 startup. Fault condition protections include output under-voltage protection, output over-voltage protection, and overtemperature protection. The low current shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. Ordering Information RT7299B Package Type QW : WQFN-14AL 3.5x3.5 (W-Type) Lead Plating System G : Green (Halogen Free and Pb Free) UVP Trim Option H : Hiccup L : Latch-Off Features  Low RDS(ON) Power MOSFET Switches 26mΩ/19mΩ  Input Voltage Range : 4.5V to 18V  Adjustable Switching Frequency : 200kHz to 1.6MHz  Current-Mode Control  Synchronous to External Clock : 200kHz to 1.6MHz  Accurate Voltage Reference 0.6V ± 1%  Monotonic Start-Up into Pre-biased Outputs  Adjustable Soft-Start  Power Good Indicator  Input Under-Voltage Lockout  Selectable Hiccup Mode and Latch-Off Mode Under-Voltage Protection  Over-Temperature and Over-Voltage Protection  Ro...