Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

文件：288.49 Kbytes 页数：29 Pages

Maxim

美信

Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

General Description The MAX1630A–MAX1635A are buck-topology, step down, switch-mode, power-supply controllers that gener ate logic-supply voltages in battery-powered systems. These high-performance, dual-/triple-output devices include on-board power-up sequencing, power-good signaling with d

文件：288.49 Kbytes 页数：29 Pages

Maxim

美信

Multi-Output, Low-Noise Power-Supply Controllers for Notebook Computers

General Description The MAX1630A–MAX1635A are buck-topology, step down, switch-mode, power-supply controllers that gener ate logic-supply voltages in battery-powered systems. These high-performance, dual-/triple-output devices include on-board power-up sequencing, power-good signaling with d

文件：288.49 Kbytes 页数：29 Pages

Maxim

美信

多输出、低噪声电源控制器，用于笔记本电脑

MAX1630A–MAX1635A是buck拓扑结构、降压型、开关模式电源控制器，可以在电池供电系统中产生逻辑电源电压。这些高性能、双路/三路输出器件具有片上顺序上电控制、带有延时的电源就绪信号、数字软启动、次级线圈控制、低压差稳压电路、内部频率补偿网络以及自举等功能。\n 通过同步整流和Maxim专利的Idle Mode™控制方案，可以实现高达96%的效率。在1000:1的负载电流范围内效率都高于80%，这可在系统挂起或待机模式下延长电池寿命。优异的动态响应能够在5个300kHz时钟周期内修正由最新动态时钟CPU引起的输出负载瞬变。片上强大的1A栅级驱动器确保了外部n沟道MO \n• +4.2V至+30V输入电压范围 \n• 可选的3.3V和5V固定电压或可调整输出(Dual Mode™) \n• 可调整次级反馈(MAX1631A/MAX1634A) \n• 精密的2.5V基准输出 \n• 电源就绪(/RESET)输出 \n• 输出欠压关断(MAX1630A/MAX1631A/MAX1632A) \n• 低压差，99%占空比工作模式 \n• 4µA典型关断电流 \n• 28引脚SSOP封装;

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