PL8312中文资料36V, 1.2A 单芯片同步降压开关直流变换器数据手册Powlicon规格书

描述 Description

PL8312 is a monolithic 36V, 1.2A step-down switching regulator. PL8312 integrates a 36V 250mΩ high side and a 36V, 140mΩ low side MOSFETs to provide 1.2A continuous load current over a 4.5V to 36V wide operating input voltage with 33V input over voltage protection. Peak current mode control provides fast transient responses and cycle-by-cycle current limiting.

PL8312 has configurable line drop compensation, configurable charging current limit. CC/CV mode control provides a smooth transition between constant current charging and constant voltage charging stages. Built-in soft-start prevents inrush current at power-up.

特性 Features

• 1.2A continuous output current capability
• 4.5V to 36V wide operating input range with 33V input Over Voltage Protection
• Integrated 36V, 250mΩ high side and 36V, 140mΩ low side power MOSFET switches
• Up to 97% efficiency
• Internal Soft-Start limits the inrush current at turn-on
• Internal compensation to save external components
• Input Under-Voltage Lockout
• Input over-voltage protection to protect device from working in high voltage and high current condition
• Output Over-Voltage Protection
• Output short protection with both high side current limit and low side current limit to protect the device in hard short
• Over-Temperature Protection
• Pulse skip mode at light load to improve light load efficiency
• Stable with Low ESR Ceramic Output Capacitors
• Fixed 500KHz Switching Frequency
• Fewest external components and intensive internal protection features
• SOP-8 Package

应用 Application

• USB car charger
• Portable charging device
• General purpose DC-DC conversion