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RT2862 是电流模式的高效同步降压型 DC/DC 转换器,可在 4.5V~36V 输入电压范围内工作,负载能力可达 3A,其内部集成 105mΩ/80mΩ MOSFET 功率开关,具有极高的转换效率,其电流模式的控制架构可支持快速的瞬时响应与简易的外部补偿。逐周期进行电流限制保护可应对输出端短路情形,内建的软启动机制则可消除启动瞬间的输入电流涌浪问题。它还具有完整的保护功能如输入欠压锁定、输出欠压保护、过流保护和热关断保护功能。RT2862 以含有外露式散热焊盘的 SOP-8 封装供货。
输入电压范围:4.5V~36V
3A 负载能力
内部集成 N-MOSFET 开关
电流模式控制架构
工作频率范围:300kHz~1MHz
输出电压可调范围:0.8V~30V
效率可达 95%
可与低 ESR 的陶瓷输出电容配合稳定工作
逐周期电流限制保护
输入欠压锁定保护
输出欠压保护
过热关机保护
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