55V, 600mA Monolithic Step-Down Switching Regulator

1 Features

600mA continuous output current capability
4.5V to 55V wide operating input range
Integrated 80V, 550mΩ high side and 80V, 350mΩ low side power MOSFET switches
Up to 95% efficiency
Internal Soft-Start limits the inrush current at turn-on
Internal compensation to save external components
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
Over-Temperature Protection
Pulse skip mode at light load to improve light load efficiency
Stable with Low ESR Ceramic Output Capacitors
Fixed 150k Switching Frequency
Fewest external components and intensive internal protection features
SOT23-6L,SOP-8 Package

2 Applications

Power Meters
Distributed Power Systems
Battery Chargers
Pre-Regulator for Linear Regulators
WLED Drivers

3 Description

PL88101 is a monolithic 55V, 600mA step-down switching regulator. PL88101 integrates a 80V 550mΩ high side and a 80V, 350mΩ low side MOSFETs to provide 600mA continuous load current over a 4.5V to 55V wide operating input voltage. Peak current mode control provides fast transient responses and cycle-by-cycle current limiting.

4 Typical Application Schematic

5 Pin Configuration and Function

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PL8810X 降压DC-DC转换器

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55V, 600mA Monolithic Step-Down Switching Regulator

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