High Efficiency, Main Power Supply Controllers for Notebook Computers

High Efficiency, Main Power Supply Controllers for Notebook Computers General Description The RT8205A/B/C dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fi

文件：497.93 Kbytes 页数：28 Pages

RichTek

立锜科技

丝印：CK=**；Package：WQFN-244x4；High Efficiency, Main Power Supply Controllers for Notebook Computers

High Efficiency, Main Power Supply Controllers for Notebook Computers General Description The RT8205A/B/C dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fi

文件：497.93 Kbytes 页数：28 Pages

RichTek

立锜科技

笔记本电脑主电源供应控制器

RT8205A/B/C 是一款双通道开关模式降压控制器，用于电池供电系统中为逻辑电路部分提供电源供应。它包含了两组输出电压可是恒定的 5V/3.3V 或在 2V~5.5V 之间调节的 PWM 控制器。一个替代 LGATE1 的输出 LG1_CP 可以用于外部电荷泵电路（RT8205B ），可选的外部电荷泵电路可用 SECFB 端子进行监测。两组恒定电压（5V/3.3V）的线性稳压器也包含其中，每个线性稳压器可以提供 70mA 输出电流，并可自动切换到 PWM 控制器的输出以提高效率。RT8205A/B/C 包含内置的上电时序管理能力、电源正常状态输出和内置软起动电路，还有内置输出软放电功能可以 • 宽输入电压范围：6V~25V\n• 两路恒定 5V/3.3V 或 2V~5.5V 可调输出，精度1.5%\n• LGATE1 替代输出（LG1_CP ）代替时钟信号用于电荷泵电路（ RT8205B ）\n• 二次回馈输入维持电荷泵输出电压（ RT8205C ）\n• 5V/3.3V 恒定输出线性稳压器输出能力为 70mA\n• 2V 参考电压精度为 ±1%，负载能力为 50μA\n• COT 控制架构，赋予其 100ns 快速负载瞬态响应能力\n• 由 TONSEL 端子状态进行工作频率选择\n• 经 RDS(ON) 进行电流检测，可程序设计电流限制及使能信号共享一个端子\;

Richtek

立锜科技

High Efficiency, Main Power Supply Controllers for Notebook Computers

High Efficiency, Main Power Supply Controllers for Notebook Computers General Description The RT8205A/B/C dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fi

文件：497.93 Kbytes 页数：28 Pages

RichTek

立锜科技

High Efficiency, Main Power Supply Controllers for Notebook Computers

High Efficiency, Main Power Supply Controllers for Notebook Computers General Description The RT8205A/B/C dual step-down, switch-mode power supply controller generates logic-supply voltages in battery-powered systems. The RT8205A/B/C includes two pulse-width modulation (PWM) controllers fi

文件：497.93 Kbytes 页数：28 Pages

RichTek

立锜科技

High Efficiency, Main Power Supply Controller for Notebook Computer

General Description The RT8205L/M is a dual step-down, switch mode power supply controller generating logic-supply voltages in battery powered systems. It includes two Pulse-Width Modulation (PWM) controllers adjustable from 2V to 5.5V, and also features fixed 5V/3.3V linear regulators. Each li

文件：405.21 Kbytes 页数：26 Pages

RichTek

立锜科技