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发布者:微桥 发布时间:2012/2/29 阅读:5233次    关键字: DC-DC
PT1203S-2A,18V,350KHz同步降压IC


PT1203S-2A,18V,350KHz Synchronous Step-Down Converter DataSheet

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 components, available in SOP-8 and ESOP-8 package.

FEATURES
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 Packages


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