RT7250B

® RT7250A/B 2A, 17V, 340/800kHz Synchronous Step-Down Converter General Description The RT7250A/B is a high efficiency, monolithic synchronous step-down DC-DC converter that can operate at 340kHz/800kHz, while delivering up to 2A output current from a 4V to 17V input supply. The RT7250A/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 disconnection, enabling easy power management in battery-powered systems. The RT7250A/B is available in a SOP-8 (Exposed Pad) package. Ordering Information RT7250A/B Package Type SP: SOP-8 (Exposed Pad-Option 1) Lead Plating System Z : ECO (Ecological Element with Halogen Free and Pb free) A : 340kHz B : 800kHz Note : Richtek products are :  RoHS compliant and compatible with the current requirements of IPC/JEDEC J-STD-020.  Suitable for use in SnPb or Pb-free soldering processes. Pin Configuration (TOP VIEW) SW VIN BOOT EN 8 2 7 GND 3 6 9 4 5 NC GND PGOOD FB SOP-8 (Exposed Pad) Features  4V to 17V Input Voltage Range  2A 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 Compen...