RT8297A

® RT8297A/B 1.5A, 17V, 340/800kHz Synchronous Step-Down Converter General Description The RT8297A/B is a high efficiency, monolithic synchronous step-down DC-DC converter that can operate at 340kHz/800kHz, while delivering up to 1.5A output current from a 4V to 17V input supply. The RT8297A/B's current mode architecture allows the transient response to be optimized. Cycle-by-cycle current limit provides protection against shorted outputs and soft-start eliminates input current surge during start-up. Fault conditions also include output under voltage protection, output over voltage protection, and thermal shutdown. The low current (<5μA) shutdown mode provides output disconnect, enabling easy power management in battery-powered systems. The RT8297A/B is available in a WDFN-8L 2x2 package. Ordering Information RT8297A/B Package Type QW : WDFN-8L 2x2 (W-Type) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) Note : A : 340kHz B : 800kHz Richtek products are :  RoHS compliant and compatible with the current require- ments of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Marking Information RT8297AZQW 00 : Product Code 00W W : Date Code Features  4V to 17V Input Voltage Range  1.5A Output Current  Internal N-MOSFETs  Current Mode Control  Fixed Frequency Operation : 340kHz/800kHz  Output Adjustable from 0.8V to 12V  Up to 95% Efficiency  Internal Compensation  Stable with Low ESR Ceramic Outpu...