Linear公司的LTC3775是高效同步降壓DC/DC控制器,輸入電壓從4.5V到38V,開關(guān)頻率從250kHz到1MHz,輸出電壓從0.6V到0.8VIN,主要應(yīng)用在汽車電子系數(shù),通信和工業(yè)設(shè)備電源以及點負(fù)載.本文介紹了LTC3775主要特性,方框圖,典型應(yīng)用電路,包括5-26V輸入,1.2V/12A輸出;8-36V輸入,2.52V/10A輸出和24V輸入,12V/5A輸出電路圖.TheLTC3775isahighefficiencysynchronousstep-downswitchingDC/DCcontrollerthatdrivesanallN-channelpowerMOSFETstagefro
Linear 公司的
LTC3775是高效同步降壓DC/DC控制器,輸入電壓從4.5V到38V,
開關(guān)頻率從
250kHz 到1MHz,輸出電壓從0.6V 到 0.8VIN,主要應(yīng)用在汽車
電子系數(shù),通信和工業(yè)設(shè)備
電源以及點負(fù)載.本文介紹了
LTC3775主要特性,方框圖, 典型應(yīng)用電路,包括5-26V輸入,1.2V/
12A輸出; 8-36V輸入,2.52V/10A輸出和
24V輸入,12V/5A輸出電路圖.
The LTC3775 is a high efficiency synchr
onous step-down switching DC/DC controller that drives an all N-channel power MOSFET stage from a 4.5V to 38V input supply voltage. A patented line feedforward compensation circuit and a high bandwidth error amplifier provide very fast line and load transient response.
High step-down ratios are made possible by a low 30ns
mini
mum on-time, allowing extremely low duty cycles MOSFET RDS(ON) current sensing maximizes efficiency.
