LTC3200低噪声，调节电荷泵DC / DC转换器特点
The LTC ® 3200/LTC3200-5 are low noise, constant frequency switched capacitor voltage doublers. LTC®3200/LTC3200-5是低噪声，恒定频率开关电容电压倍增器。 They produce a regulated output voltage from a 2.7V to 4.5V input with up to 100mA of output current.它们产生100mA的输出电流调节输出电压从2.7V至4.5V的输入最多。 Low external parts count (one flying capacitor and two small bypass capacitors at V IN and V OUT ) make the LTC3200/LTC3200-5 ideally suited for small, battery-powered applications.低外部元件数（一个浮动电容器和两个小型旁路电容在V IN和V OUT的 ）使LTC3200/LTC3200-5非常适合为小型，电池供电的应用。
A new charge-pump architecture maintains constant switching frequency to zero load and reduces bith output and input ripple.一个新的电荷泵架构保持恒定的开关频率，以零负载，并降低bith输出和输入纹波。 The LTC3200/LTC3200-5 have thermal shutdown capability and can survive a continuous short-circuit from V OUT to GND. LTC3200/LTC3200-5具有热关机功能，可以从V OUT生存连续短路至GND。 Built-in soft-start circuitry prevents excessive inrush curreent during start-up.内置软启动电路，可防止启动期间过度浪涌curreent。
High switching frequency enables the use of small ceramic capacitors.高开关频率允许使用小型的陶瓷电容器。 A low current shutdown feature disconnects the load from VIN and reduces quiescent current to <1µA.低电流关断功能，从VIN断开负载，并降低静态电流<1μA。
The LTC3200 is available in an 8-pin MSOP package and the LTC3200-5 is available in a 6-pin SOT-23.提供8引脚MSOP封装的LTC3200和LTC3200-5是在6引脚SOT-23。
应用