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