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引言诸如运算放大器、驱动器或传感器等电子组件的运作通常需要双极性电源,但是在负载点却很少有一个可用的双极性电源。LTC3260是一款具有两个低噪声LDO稳压器的负输出充电泵(无电感器)DC/DC转换器,可利用单个宽输入(4.5V至32V)电源产生正和负电源。该器件能够在高效率的突发模式(Burst Mode)操作与低噪声的恒定频率模式之间切换,从而使其同时受到便携式应用和噪声敏感型应用所欢
Introduction The operation of electronic components such as op amps, drivers or sensors usually requires a bipolar supply, but there is seldom an available bipolar supply at the point of load. The LTC3260 is a negative output charge pump (inductorless) DC / DC converter with two low noise LDO regulators that can generate positive and negative supplies from a single wide input (4.5V to 32V) supply. The device switches between high-efficiency burst mode operation and low-noise constant-frequency mode, making it suitable for both portable and noise-sensitive applications