PL8310

36V, 1A Monolithic Step-Down Switching Regulator

DS-PL8310-Rev. 1.2

www.powlicon.com

2019-07-12

1 Description

PL8310 is a monolithic 36V, 1A step-down switching

regulator. PL8310 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.

PL8310 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, 250mΩhigh side and 36V, 140m

Ωlow 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

from working 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

load efficiency



Stable with Low ESR Ceramic Output Capacitors



Fixed 150KHz Switching Frequency



Fewest external components and intensive

internal protection features



SOP-8 Package

3 Applications

 USB car charger

 Portable charging device

 General purpose DC-DC conversion