摘要：一个DS4424可调电流DAC用于调整的DC-DC转换器的输出电压幅度。本文介绍如何正确地选择一个DC-DC转换器的反馈分压器网络的电阻值时， DS4424在设计就业。Maxim > App Notes > DIGITAL POTENTIOMETERS Keywords: DC-DC converter, resistive feedback divider network, current DAC, full-scale current, source Sep 22, 2008 current, sink current, output voltage margin, power supply, test margining, DC-DC converter feedback margining APPLICATION NOTE 4280 Using the DS4424 to Margin the Output Voltage of a DC-DC Converter Abstract: A DS4424 adjustable-current DAC is used to adjust the margin of a DC-DC converter's output voltage. This article describes how to properly select the resistor values of a DC-DC converter's feedback divider network when the DS4424 is employed in the design. Introduction The DS4424 adjustable-current DAC is similar to the DS4404 adjustable-current DAC with two major differences. First, the DS4424 has 127 settings each for……