RT7247B

Design Sample & Tools Buy ® RT7247B 2A, 18V, 1.2MHz Synchronous Step-Down Converter General Description The RT7247B is a high efficiency, monolithic synchronous step-down DC/DC converter that can deliver up to 2A output current from a 4.5V to 18V input supply. The RT7247B's current mode architecture and external compensation allow the transient response to be optimized over a wide input range and loads. Cycle-bycycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start-up. The RT7247B also provides under voltage protection and thermal shutdown protection. The low current (<3μA) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT7247B is available in an SOP-8 (Exposed Pad) package. Marking Information RT7247BxGSP : Product Number RT7247Bx GSPYMDNN x : H or L YMDNN : Date Code Features  ±1.5% High Accuracy Reference Voltage  4.5V to 18V Input Voltage Range  2A Output Current  Integrated N-MOSFET Switches  Current Mode Control  Fixed Frequency Operation : 1.2MHz  Output Adjustable from 0.8V to 12V  Stable with Low ESR Ceramic Output Capacitors  Up to 95% Efficiency  Programmable Soft-Start  Cycle-by-Cycle Over Current Limit  Input Under Voltage Lockout  Output Under Voltage Protection  Thermal Shutdown Protection  RoHS Compliant and Halogen Free Applications  Wireless AP/Router  Set-Top-Box  Industrial and Commercial Low Power ...