【PT1203】_PT1203电路_PT1203封装_PT1203功能
PT1203
PT1203利盛达咨询电话:139 2843 4054

PT1203概述:2A,18V,350KHz同步整流降压DC-DC转换器
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.


PT1203技术特性
•   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


PT1203脉宽调制(PWM)开关型的同步降压转换电路,其内部集成了功率管,能够提供2A的持续输出能力,并且能在较宽的输入电压范围内保证很好的负载调整率和电源线性调整率。PT1203采用电流工作模式,可使系统具有快速的瞬态响应能力和系统稳定性。此外,PT1203还集成了一些保护功能,例如:逐周期的限流保护,过热保护等。该芯片在待机模式下只消耗23?A的电流。PT1203采用SOP-8封装,仅需少量的标准外部器件,就可以搭建出一个降压转换电路。


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