SGM6232 Datasheet | SG Micro

DESCRIPTION FEATURES The SGM6232 is a current-mode step-down regulator with an internal power MOSFET. This device achieves 2A continuous output current over a wide input supply range from 4.5V to 38V with excellent load and line regulations. The switching frequency of SGM6232 is 1.4MHz and current mode operation provides fast transient response and eases loop stabilization. The SGM6232 is highly efficient with peak efficiency at 91% when in operation. In shutdown mode the regulator draws less than 18µA of supply current. Protection features include cycle-by-cycle current limit and thermal shutdown. The device also includes an internal soft-start and an external adjustable soft-start function to limit the inrush current and prevent the overshoot of output voltage. The SGM6232 is available in Green SOIC-8 (Exposed Pad) package and requires a minimum number of readily available external ponents to plete a 2A step- down DC/DC converter solution. - 2A Output Current - High Efficiency: Up to 91% - 4.5V to 38V Input Voltage Range - < 18µA Shutdown Supply Current - 100mΩ Internal Power MOSFET Switch - Fixed 1.4MHz Switching Frequency - Output Adjustable from 0.8V to 28V - Cycle-by-Cycle Current Limit Protection - Thermal Shutdown Protection - Under-Voltage Lockout - Stable with Low ESR Ceramic Capacitors - -40℃ to +85℃ Operating Temperature Range - Available in Green SOIC-8 (Exposed Pad) Package APPLICATIONS Distributed Power Systems Battery Chargers Flat Panel TVs Set-Top Boxes Pre-Regulator for Linear Regulators Cigarette Lighter Powered Devices DVD/PVR Devices TYPICAL APPLICATION INPUT 4.5V to 38V ENABLE CIN 22μF ceramic cap remended R4 C5 10Ω or shorted 10n F IN EN BS SW SS GND FB P C4 0.1μF C6 Optional C3 5.6n F R3 10kΩ L 4.7μH R1 33kΩ D1 B340A R2 10.5kΩ OUTPUT...