DC2114A 演示电路采用具有三重单片降压稳压器和升压
控制器的 LT8603。该演示电路设计用于标称 12V 输入的 8V、5V、3.3V 和 1.8V 输出。第 4 个通道设置为升压转换器，由宽输入范围供电，如果 3V < VIN < 8.5V，则输出 VOUT4 稳定在 8V。如果输入电压高于 8.5V，它的工作方式为二极管直通。两个高压降压稳压器由升压转换器供电。 VOUT1 稳定在 5V，最大输出
负载电流为 1.5A，VOUT2 稳定在 3.3V，最大输出负载电流为 2.5A。得益于预升压转换器，它们可以承受汽车应用中的冷启动，同时提供恒定的 5V 和 3.3V 输出电压。低压降压由 VOUT2 (3.3V) 供电，输出 VOUT3 调节在 1.8V，最大负载电流为 1.8A
说明
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DC2114A, Demonstration Circuit features the LT8603 with triple monolithic buck regulator and a boost controller. The demo circuit is designed for 8V, 5V, 3.3V and 1.8V outputs from a nominal 12V input. The 4th channel is set as a boost converter and is powered from a wide input range with output VOUT4 regulated at 8V if 3V < VIN < 8.5V. It works as diode pass through if the input is above 8.5V. The two high voltage buck regulators are powered from the boost converter. VOUT1 is regulated at 5V with 1.5A maximum output load current, and VOUT2 is at 3.3V with 2.5A maximum output load current. Thanks to the pre-boost converter, they can ride through a cold crank in automotive applications while providing constant output voltages 5V and 3.3V. The low voltage buck is powered from the VOUT2 (3.3V), and the output VOUT3 is regulated at 1.8V with 1.8A maximum load current
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