LSP5526

LSP5526 2A 23V Synchronous Buck Converter General Description The LSP5526 is a monolithic synchronous buck regulator. The device integrates 95mΩ MOSFETS that provide 2A continuous load current over a wide operating input voltage of 4.5V to 23V. Current mode control provides fast transient response and cycle-by-cycle current limit. An adjustable soft-start prevents inrush current at turn on. Features            2A Output Current Wide 4.5V to 23V Operating Input Range Integrated Power MOSFET Switches Output Adjustable from 0.925V to 18Vin Up to 96% Efficiency Programmable Soft-Start Stable with Low ESR Ceramic Output Capacitors Fixed 340KHZ Frequency Cycle by Cycle Over Current Protection Input Under Voltage Lockout Package： SOP-8L Applications      Distributed Power Systems Networking Systems FPGA, DSP, ASIC Power Supplies Green Electronics/ Appliances Notebook Computers Please be aware that an Important Notice concerning availability, disclaimers, and use in critical applications of LSC products is at the end of this document. LSP5526 Rev. 1.3 1 of 15 www.liteonsemi.com 2014/8/27 LSP5526 2A 23V Synchronous Buck Converter Block Diagram CURRENT SENSE AMPLIFIER 5V OVP 1.1V FB 5 0.3V OSCILLATOR 2 VIN RAMP 340/120KHz CLK 1 BS S Q R Q SS 8 0.925V ERROR AMPLIFIER CURRENT COMPARATOR 6uA 3 SW COMP 6 EN 7 2.5V EN OK LOCKOUT COMPARATOR 4 GND 1.2V OVP IN<4.10V IN INTERNAL REGULATORS 1.5V SHUTDOWN COMPARATOR Ordering Information LSP 5526 - X XX X ...