PL831K数据手册Powlicon中文资料规格书

描述 Description

PL831K is a monolithic 36V,1A step-down switchingregulator. PL831K integrates a 36V 220mQ high side and a 36V,110mQ low side MOSFETs to provide 1Acontinuous 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.\r
\r
PL831K 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

• 1A continuous output current capability\r
• 4.5V to 36V wide operating input range with 33V input Over Voltage Protection\r
• Integrated 36V, 220mΩ high side and 36V,110mΩ low side power MOSFET switches\r
• Up to 93.5% efficiency\r
• Internal Soft-Start limits the inrush current at turn-on\r
• Internal compensation to save external components\r
• Input Under-Voltage Lockout\r
• Input over-voltage protection to protect device from working in high voltage and high current condition\r
• Output Over-Voltage Protection\r
• Output short protection with both high side current limit and low side current limit to protect the device in hard short\r
• Over-Temperature Protection\r
• Pulse skip mode at light load to improve light load efficiency\r
• Stable with Low ESR Ceramic Output Capacitors\r
• Fixed 150KHz Switching Frequency\r
• Fewest external components and intensive internal protection features\r
• Available in SOT23-6 Package

应用 Application

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