凌力尔特公司 (Linear Technology Corporation) 的 DC/DC 转换器 LT3954，具有内部 5A 开关，可用作恒定电流源和恒定电压稳压器。 LT3954 40VIN LED Converter with Internal PWM Generator FEATURES DESCRIPTION n 3000:1 True Color PWM Dimming for LEDs The LT3954 is a DC/DC converter designed to operate as n Wide VIN Range: 4.5V to 40V ……