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RT7252A/B系列为高效率的同步Buck转换器,工作频率为340kHz/800kHz,在4V至17V的输入电源范围可提供最高为2A的输出电流。RT7252A/B采用电流模式架构,可优化瞬态响应的特性。逐周期电流限制保护组件免受输出短路影响;软启动功能可在启动过程中消除输入端电流冲击。故障保护包括输出欠压保护、输出过压保护、过热保护。低电流消耗(<5μA)之电源关机模式会将输出关闭,有助于电池供电系统的电源管理。RT7252A/B支持 PSOP-8 的封装规格。
输入电压范围:4V~17V
负载能力:2A
内部集成N-MOSFET功率开关
电流模式控制架构
固定工作频率:340kHz/800kHz
输出电压可调范围:0.8V~12V
效率高达95%
内部补偿
与低ESR陶瓷输出电容配合可稳定工作
逐周期过流限制保护
输入欠压锁定保护
输出欠压保护
输出过压保护
Power Good指示
过热关机保护
符合RoHS规范,不含卤素
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