36V, 1A Monolithic Step-Down Switching Regulator

1 Features

1A 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 compensation to save external components
Input Under-Voltage Lockout
Input over-voltage protection to protect device fromworking 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
Soft start time is programmable using external capacitor 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 internalprotection features
SOP-8 Package

2 Applications

Distributed Power Systems
Portable charging device
General purpose DC-DC conversion

3 Description

PL8316 is a monolithic 36V, 1A step-down switching regulator. PL8316 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.

PL8316 has configurable line drop compensation,configurable charging current limit. CC/CV mode control provides a smooth transition betweenconstant current charging and constant voltage harging stages. Built-in soft-start prevents inrush current at power-up.

4 Typical Application Schematic

5 Pin Configuration and Functions

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PL8316 降压DC-DC转换器

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36V, 1A Monolithic Step-Down Switching Regulator

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