PL8310C  36V, 1A Monolithic Step-Down Switching Regulator

1 Description

     PL8310C is a monolithic 36V, 1A step-down switching regulator. PL8310C 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.

    PL8310C 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

? Output Voltage: 5V

? 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 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

? SOT23-6 Package

3 Applications

? USB car charger

? Portable charging device

? General purpose DC-DC conversion

4 Website：www.baitaishengshi.com

5 Typical Application Schematic