The XC6366A503MR series are multi-functional step-down DC/DC controllers which h***e 1A output current capability by using an externally connected transistor, coil, diode and capacitor.
XC6366A503MR Output voltage is programmable in 0.1V increments between 1.5V to 6.0V (VOUT) (&plu***n;2.5% accuracy). Further, with 1.0V of standard voltage supply internal and using externally connected components, output voltage can be set up freely (FB). With a 300kHz switching frequency, the size of the external components can be reduced.
XC6366A503MR系列是使用晶体管, 线圈, 二极管和电容器共4种外置元件,可构建输出电流为1A以上的***率*** DC/DC转换器。
XC6366A503MR器件可在1.5V～6.0V(精度&plu***n;2.5%)范围内,以0.1V的间隔进行设定(VOUT型)。并且,除了VOUT型之外,还备有内置1.0V的基准电压源,可以外置元件任意设定输出电压的型号(FB型)。因开关频率高达300kHz,可使用小型外置元件。
在小负载时,PWM/PFM切换控制型XC6366A503MR系列以PFM工作模式进行工作。因此,在从小负载至大输出电流的整个负载范围内,达到***率。
XC6366系列软启动时间有,在内部设定为10ms的型号(A, B型),以及可用外置电阻和电容器进行调整的的型号(C,D型)。使用待机功能,可停止工作使电流消耗达到0.5μA以下(CE端"L")。内置U.V.L.O.功能,当输入电压在规定电压以下时,会强制性地将外置晶体管断开。
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