ADI ADP2443同步降压3A DC－DC转换电源解决方案
ADI公司的ADP2443是集成了98 mΩ高端功率金属氧化物半导体场效应晶体管(MOSFET)和35 mΩ同步整流器MOSFET的同步降压DC/DC稳压器,输入电压4.5V-36V,输出电压可调至0.6V,输出电流3A,开关频率可在200 kHz至1.8 MHz范围内编程,保护特性包括欠压闭锁(UVLO),过压保护(OVP),过流保护(OCP),短路保护(SCP)和热关断(TSD),主要用在中间供电轨转换,多单元电池供电系统,过程控制和工业自动化,医疗保健以及网络和服务器.本文介绍了ADP2443主要特性,功能框图,几种应用电路以及评估板ADP2443-EVALZ主要特性,电路图,材料清单和PCB设计图.
The ADP2443 is synchronous step-down, dc-to-dc regulatorwith an integrated 98 mΩ, high-side power metal oxide semiconductorfield effect transistor (MOSFET) and a 35 mΩ, synchronousrectifier MOSFET to provide a high efficiency solution in acompact 4 mm × 4 mm LFCSP package. The regulators operatefrom an input voltage range of 4.5 V to 36 V. The output voltagecan be adjusted down to 0.6 V and deliver up to 3 A ofcontinuous current. The fast 50 ns minimum on time allows theregulators convert high input voltage to low output voltage at highfrequency.
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