PL8310E  36V, 1A Monolithic Step-Down Switching Regulator

1 Description

     PL8310E is a monolithic 36V, 1A step-down switching regulator. PL8310E 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.

    PL8310E 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.

2 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 Soft-Start limits the inrush current atturn-on

 Internalcompensationtosaveexternalcomponents

 Input Under-Voltage Lockout

 Input over-voltage protection to protect devicefrom working in high voltage and high currentcondition

 Output Over-Voltage Protection

 Output short protection with both high sidecurrent limit and low side current limit toprotect the device in hard short

Over-Temperature Protection

Pulse skip mode at light load to improve lightload efficiency

 Stable with Low ESR Ceramic Output Capacitors

 Fixed 150KHz Switching Frequency

 Fewest external components and intensiveinternal protection features

 SOT23-6 Packag

3 Applications

 USB car charger

 Portable charging device

 General purpose DC-DC conversion

4 Website：www.baitaishengshi.com

5 Typical Application Schematic