36V,2.4A Monolithic Step-Down Switching Regulator
1、Features

  • 2.4A continuous output current capability

  • 6.5V to 36V wide operating input range with 33V input Over Voltage Protection

  • Integrated 36V, 108mΩ high side and 36V, 102mΩ low side power MOSFET switches

  • Up to 95% efficiency

  • Internally fixed 3A constant current control

  • Programmable Soft-Start limits the inrush current at turn-on

  • Stable with Low ESR Ceramic Output Capacitors

  • Fixed 500KHz Switching Frequency

  • Input Under-Voltage Lockout. Output Over-VoltageProtection

  • Over-Temperature Protection

  • Thermally Enhanced ESOP-8 Package


2、Applications

  • USB car charger

  • Portable charging device

  • General purpose DC-DC conversion


3、Description
The PL83251 is a monolithic 36V, 2.4A step-down switching regulator with CC/CV control loop. PL83251 integrates a high efficiency synchronous step-down switching regulator, which includes a 36V 108mΩ high side and a 36V, 102mΩ low side MOSFETs to provide 2.4A continuous load current over a 6.5V to 36V wide operating input voltage. Peak current mode control provides fast transient responses and cycle-by-cycle current limiting.Programmable soft-start prevents inrush current at power-up. The supply current drops below 1μA in shutdown mode.
4、Typical Application Schematic & Efficiency5、Pin Configuration and Functions
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