描述
The SGM6132 is a current-mode buck converter with an internal power MOSFET switch. This device has an adjustable output voltage range of 0.8V to 22V and a fixed switching frequency of 1.4MHz. It can efficiently provide up to 3A output load current over a wide input supply range from 4.5V to 28.5V with good load and line regulations responses.
In addition, the SGM6132 is highly efficient with peak efficiency at 91% when in operation. The shutdown supply current consumed by the regulator is less than 18μA. 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 SGM6132 is available in a Green SOIC-8 (Exposed Pad) package and also minimizes the external components of the device to complete a 3A buck DC/DC converter solution.
特性
? 4.5V to 28.5V Input Voltage Range
? 0.8V to 22V Adjustable Output Voltage Range
? 3A Output Current
? 91% Peak Efficiency
? Shutdown Supply Current: 18μA (MAX)
? 100mΩ Internal Power MOSFET Switch
? 1.4MHz Fixed Switching Frequency
? Cycle-by-Cycle Current Limit Protection
? Thermal Shutdown Protection
? Under-Voltage Lockout
? Support Low ESR Ceramic Capacitors
? -40℃ to +85℃ Operating Temperature Range
? Available in a Green SOIC-8 (Exposed Pad) Package
應用
? Battery Chargers
? Flat Panel TVs
? Set-Top Boxes
? Cigarette Lighter Powered Devices
? Pre-Regulators