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

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