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
应用
• Battery Chargers
• Flat Panel TVs
• Set-Top Boxes
• Cigarette Lighter Powered Devices
• Pre-Regulators