PL8310D 36V, 1.5A Monolithic Step-Down Switching Regulator

1 Description

      PL8310D is a monolithic 36V, 1.5A step-downswitching regulator. PL8310D integrates a 36V 250mΩhigh side and a 36V, 140mΩ low side MOSFETs toprovide 1.5A continuous load current over a 4.5V to36V wide operating input voltage with 33V input overvoltage protection. Peak current mode controlprovides fast transient responses and cycle-by-cyclecurrent limiting.

    PL8310D has configurable line drop compensation,configurable charging current limit. CC/CV modecontrol provides a smooth transition between

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

2 Features

 1.5A 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

 ESOP8 Package

3 Applications

 USB car charger

 Portable charging device

 General purpose DC-DC conversion

4 Website：www.baitaishengshi.com

5 Typical Application Schematic