PT1203 Datasheet | Powtech

2A, 18V, 350KHz Synchronous Step-Down Converter GENERAL DESCRIPTION The PT1203 is a monolithic pulse-width-modulated (PWM) synchronous step-down switch mode regulator with two internal power MOSFETs. It achieves 2A continuous output current over a wide input supply range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limit and thermal shutdown. The PT1203 requires a minimum number of external ponents, available in SOP-8 and ESOP-8 package. Features z z z z z z z z z z 2A Output Current 0.13Ω Internal Power MOSFET Switch Stable with Low ESR Output Ceramic Capacitors Up to 93% Efficiency Fixed 350KHz Frequency Thermal Shutdown Cycle-by-Cycle Over Current Protection Wide 4.75V to 18V Operating Input Range Output Adjustable from 0.923V to 15V Available in 8-Pin SOP8 and ESOP8 Packages APPLICATION z z z PC Monitors LCD TV Distributed Power Systems z z z Network Systems FPGA, DSP, ASIC Power Supplies Notebook puters ORDERING INFORMATION PACKAGE SOP-8 ESOP-8 Note: xxxxx X Assembly Factory Code Lot Number TEMPERATURE RANGE -40℃ to 85℃ -40℃ to 85℃ ORDERING PART NUMBER PT1203ESOH PT1203EESH TRANSPORT MEDIA Tape and Reel 2500 units Tape and Reel 2500 units MARKING PT1203 xxxxx X PT1203 xxxxx X TYPICAL APPLICATION CIRCUIT Figure1 - - PT1203 Typical application circuit China Resources Powtech (Shanghai) Limited PT1203_DS Rev EN1.0 .CRPOWTECH. Page1 2A, 18V, 350KHz Synchronous Step-Down Converter PIN ASSIGNMENT TOP VIEW TOP VIEW BS IN SW GND SOP8 SS EN P FB BS IN SW GND EXPOSED PAD ON BACKSIDE CONNECT TO GND PIN SS EN P...