RT7237C

® RT7237C 2A, 18V, 800kHz Synchronous Step-Down Converter General Description The RT7237C 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 RT7237C'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 RT7237C also provides under voltage protection and thermal shutdown protection. The low current (<3 μ A) shutdown mode provides output disconnection, enabling easy power management in battery-powered systems. The RT7237C is available in an SOP-8 (Exposed Pad) package. Features z z z z z z z z z z z z z z z ±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 : 800kHz 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 Marking Information RT7253CHGSP : Product Number Applications z z z z z z RT7237CH GSPYMDNN YMDNN : Date Code Wireless AP/Router Set-Top-Box Industrial and Commercial Low Power Systems LCD Monitors and TVs Gree...