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推荐一款DC-DC降压IC



请推荐一款DC-DC降压IC,输入8-24V,恒压输出5V,恒流2-5A可调.负载过流后降压保持电流。说明:给一个仪器供电,原设计方案用tps51125,5V8A,没有过流,仪器用这个电源,电源瞬间功率太大,结果电源接口容易烧,这个仪器正常功耗是100Ma,瞬间能达到4A,限制2.5A到3A比较好些。