1 Features

  • 1A 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 compensation to save external components

  • Input Under-Voltage Lockout

  • Input over-voltage protection to protect device fromworking 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

  • Soft start time is programmable using external capacitor Over-Temperature Protection

  • Pulse skip mode at light load to improve light load efficiency

  • Stable with Low ESR Ceramic Output Capacitors

  • Fixed 150KHz Switching Frequency

  • Fewest external components and intensive internalprotection features

  • SOP-8 Package

2 Applications

  • Distributed Power Systems

  • Portable charging device

  • General purpose DC-DC conversion


3 Description

PL8316 is a monolithic 36V, 1A step-down switching regulator. PL8316 integrates a 36V 250mΩ high side and a 36V, 140mΩ low side MOSFETs to provide 1A 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.

PL8316 has configurable line drop compensation,configurable charging current limit. CC/CV mode  control provides a smooth transition betweenconstant current charging and constant voltage harging stages. Built-in soft-start prevents inrush current at power-up.

4 Typical Application Schematic5 Pin Configuration and Functions

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