器件名称详细搜索
产品TPS62813-Q1TI
描述

TPS6281x-Q1 是一个易于使用的引脚对引脚 1A、2A、3A 和 4A 高效同步降压直流/直流转换器系列。它们基于峰值电流模式控制拓扑,旨在用于信息娱乐系统和高级驾驶员辅助系统等汽车 应用 。低阻开关可在高温环境下支持高达 4A 的持续输出电流。用户可通过外部方式在 1.8MHz 至 4MHz 范围内调节开关频率,亦可在该频率范围内将其同步至外部时钟。在 PWM/PFM 模式下,TPS6281x-Q1 会在轻负载情况下自动进入省电模式,从而在整个负载范围内维持高效率。TPS6281x-Q1 可在 PWM 模式下提供 1% 的输出电压精度,这有助于实现具有高输出电压精度的电源设计。通过 SS/TR 引脚,可设置启动时间或跟踪向外部源提供的输出电压。此特性可实现不同电源轨的外部定序并限制启动期间的浪涌电流。

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