PL8310G 36V, 1A Monolithic Step-Down Switching Regulator

1 Features

?1A continuous output current capability

?4.5V to 36V wide operating input range with 33Vinput Over Voltage Protection

?Integrated 36V, 250mΩ high side and 36V, 140mΩlow 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 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

?Over-Temperature Protection

?Pulse skip mode at light load to improve light loadefficiency

?Stable with Low ESR Ceramic Output Capacitors

?Fixed 150KHz Switching Frequency

?Fewest external components and intensive internalprotection features

?SOT23-6 Package

2 Applications

?USB car charger

?Portable charging device

?General purpose DC-DC conversion

3 Description

       PL8310G is a monolithic 36V, 1A step-down switching regulator. PL8310G 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.

     PL8310G has configurable line drop compensation, configurable charging current limit. CC/CV mode control provides a smooth transition between

constantcurrent charging and constant voltagecharging stages. Built-in soft-start prevents inrushcurrent at power-up.

4 TWebsite：www.baitaishengshi.com

5 Typical Application Schematic