1 Features
3.1A continuous output current capability
6.5V to 36V wide operating input range with inputOver Voltage Protection
Integrated 36V, 76mΩ high side and 36V, 52mΩ lowside power MOSFET switches
Up to 95% efficiency
CV/CC Mode control (Constant voltage andconstant current). Cycle-by-Cycle Current Limiting
Configurable Line Drop Compensation with resistor
Configurable Charging Current Limit with resistor
Internal Soft-Start limits the inrush current at turn-on
Internal compensation to save external components
Stable with Low ESR Ceramic Output Capacitors
Fixed 100KHz Switching Frequency
Input Under-Voltage Lockout. Output Over-VoltageProtection
Over-Temperature Protection
Soft start time is programmable using externalcapacitor
33V input voltage protection to protect powerMOSFETs from working at high current ,high inputvoltage condition
Pulse skip mode at light load to improve light loadefficiency
Thermally Enhanced ESOP-8 Package
2 Applications
Car charger
Portable charging device
General purpose USB charger
General purpose DC-DC conversion
3 Description
PL8322 integrates a high efficiency synchronousstep-down switching regulator, which includes a 36V,76mΩ high side and a 36V, 52mΩ low sideMOSFETs to provide 3.1A continuous load currentover 6.5V to 36V wide operating input voltage with33V input over voltage protection. Peak current modecontrol provides fast transient responses andcycle-by-cycle current limiting. PL8322 hasconfigurable line drop compensation, configurablecharging current limit. CC/CV mode control providesa smooth transition between constant currentcharging and constant voltage charging stages.Built-in soft-start prevents inrush current at power-up.
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