高效率单相同步降压型 PWM 控制器

RT8237C/D为提供高效率、优越的瞬时回应与高直流输出稳定度的降压型PWM 控制器，适用于电池降压供电予笔记本电脑内部具有低压电源需求的CPU核心、I/O与RAM芯片等应用。PWM的固定导通时间架构可允许较广的输入/输出电压比，并可在固定的切换频率下提供100ns \"instant-on\" 的负载响应特性。RT8237C/D 具备高效率并可不必装设以往传统PWM电流模式所必要的电流感测电阻以达到低电路设计成本的优势，并可藉由驱动同步整流MOSFET并进入二极管仿效模式以达到轻载状态的高效率表现。其降压转换特性允许装置电池达到最高效率的条件下进行高低压转换。可默认的频率选择功能可降低应用 • 宽输入电压范围: 4.5V 至 26V\n• 内建0.5% 0.7V 参考电压\n• 可藉由低端RDS(ON)感测程序设计的4700ppm/°C 电流限制设计\n• 缓启动控制\n• 整合的自举开关\n• 过热关机\n• 符合RoHS规范与无卤特性;

Richtek

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High Efficiency Single Synchronous Buck PWM Controller

General Description The RT8237E PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant on-time PWM c

文件：225.43 Kbytes 页数：18 Pages

RichTek

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High Efficiency Single Synchronous Buck PWM Controller

General Description The RT8237E PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant on-time PWM c

文件：225.43 Kbytes 页数：18 Pages

RichTek

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High Efficiency Single Synchronous Buck PWM Controller

General Description The RT8237L PWM controller provides high efficiency, excellent transient response, and high DC output accuracy needed for stepping down high voltage batteries to generate low voltage CPU core, I/O, and chipset RAM supplies in notebook computers. The constant on-time PWM c

文件：809.56 Kbytes 页数：23 Pages

RichTek

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