1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

General Description The MAX1742/MAX1842 constant-off-time, pulse-width-modulated (PWM) step-down DC-DC converters are ideal for use in 5V and 3.3V to low-voltage conversion necessary in notebook and subnotebook computers. These devices feature internal synchronous rectification for high efficienc

文件：597.96 Kbytes 页数：16 Pages

MAXIM

美信

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

文件：287.76 Kbytes 页数：16 Pages

MAXIM

美信

1A/2.7A、1MHz、降压型稳压器，内置同步整流与开关

MAX1742/MAX1842是恒定关断时间、脉宽调制(PWM)降压DC-DC转换器，非常适合为笔记本电脑和小型笔记本电脑提供所需的5V和3.3V至低压转换。这些器件具有内部同步整流功能，可实现高效率并减少元件数量。它们不需要外部肖特基二极管。内部90mΩ PMOS电源开关和70mΩ NMOS同步整流器开关可轻松提供高达1A的连续负载电流。MAX1742/MAX1842提供2.5V、1.8V或1.5V预设输出电压，或1.1V至VIN可调输出。其效率高达95%。\n\n MAX1742/MAX1842采用专门的电流模式、恒定关断时间、PWM控制方案，借助Idle Mode™技术 • 输出精度：±1%\n\n• 95%效率\n\n• 内部PMOS和NMOS开关\n• VIN = 4.5V时，导通电阻为90mΩ\n\n• VIN = 3V时，导通电阻为110mΩ\n\n\n\n\n• 输出电压\n• 引脚可选2.5V、1.8V或1.5V\n\n• 1.1V至VIN可调\n\n\n\n\n• 输入电压范围：3V至5.5V\n\n• 工作电源电流：600µA（最大值）\n\n• 关断电源电流：< 1µA\n\n• 可编程恒定关断时间操作\n\n• 开关频率：1MHz（最大值）\n\n• 轻负载时进入空闲模式\n\n• 热关断\n\n• 可调软启动冲击限流\n\;

ADI

亚德诺

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

General Description The MAX1742/MAX1842 constant-off-time, pulse-width-modulated (PWM) step-down DC-DC converters are ideal for use in 5V and 3.3V to low-voltage conversion necessary in notebook and subnotebook computers. These devices feature internal synchronous rectification for high efficienc

文件：597.96 Kbytes 页数：16 Pages

MAXIM

美信

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

General Description The MAX1742/MAX1842 constant-off-time, pulse-width-modulated (PWM) step-down DC-DC converters are ideal for use in 5V and 3.3V to low-voltage conversion necessary in notebook and subnotebook computers. These devices feature internal synchronous rectification for high efficienc

文件：597.96 Kbytes 页数：16 Pages

MAXIM

美信

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

文件：287.76 Kbytes 页数：16 Pages

MAXIM

美信

PLASTIC ENCAPSULATED DEVICES

文件：39.19 Kbytes 页数：5 Pages

MAXIM

美信

PLASTIC ENCAPSULATED DEVICES

文件：39.19 Kbytes 页数：5 Pages

MAXIM

美信

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

文件：287.76 Kbytes 页数：16 Pages

MAXIM

美信

1A/2.7A, 1MHz, Step-Down Regulators with Synchronous Rectification and Internal Switches

文件：287.76 Kbytes 页数：16 Pages

MAXIM

美信