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

文件：288.49 Kbytes 頁數(shù)：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 頁數(shù)：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 頁數(shù)：29 Pages

MAXIM

美信

多輸出、低噪聲電源控制器，用于筆記本電腦

MAX1630A–MAX1635A是buck拓?fù)浣Y(jié)構(gòu)、降壓型、開關(guān)模式電源控制器，可以在電池供電系統(tǒng)中產(chǎn)生邏輯電源電壓。這些高性能、雙路/三路輸出器件具有片上順序上電控制、帶有延時的電源就緒信號、數(shù)字軟啟動、次級線圈控制、低壓差穩(wěn)壓電路、內(nèi)部頻率補(bǔ)償網(wǎng)絡(luò)以及自舉等功能。\n 通過同步整流和Maxim專利的Idle Mode?控制方案，可以實(shí)現(xiàn)高達(dá)96%的效率。在1000:1的負(fù)載電流范圍內(nèi)效率都高于80%，這可在系統(tǒng)掛起或待機(jī)模式下延長電池壽命。優(yōu)異的動態(tài)響應(yīng)能夠在5個300kHz時鐘周期內(nèi)修正由最新動態(tài)時鐘CPU引起的輸出負(fù)載瞬變。片上強(qiáng)大的1A柵級驅(qū)動器確保了外部n溝道MO \n? +4.2V至+30V輸入電壓范圍 \n? 可選的3.3V和5V固定電壓或可調(diào)整輸出(Dual Mode?) \n? 可調(diào)整次級反饋(MAX1631A/MAX1634A) \n? 精密的2.5V基準(zhǔn)輸出 \n? 電源就緒(/RESET)輸出 \n? 輸出欠壓關(guān)斷(MAX1630A/MAX1631A/MAX1632A) \n? 低壓差，99%占空比工作模式 \n? 4μA典型關(guān)斷電流 \n? 28引腳SSOP封裝;

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