High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

General Description The MAX1533/MAX1537 are dual step-down, switch mode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from th

文件：763.81 Kbytes 頁數(shù)：38 Pages

MAXIM

美信

高效率、5路輸出、主電源控制器，用于筆記本電腦

MAX1533/MAX1537是兩路降壓型，同步整流的開關(guān)電源(SMPS)控制器，用于在電池供電系統(tǒng)中產(chǎn)生主5V/3.3V電源。在最低至最高26V的電壓輸入范圍內(nèi)，優(yōu)化的交錯(cuò)固定頻率工作模式將輸入紋波電流降至最低。優(yōu)化的40/60交錯(cuò)控制使輸入電壓能夠在占空比交迭前降至8.3V，而使用180°異相穩(wěn)壓器，輸入降至10V時(shí)，便出現(xiàn)占空比交迭。輸出電流檢測使用檢流電阻實(shí)現(xiàn)精確的電流限制。此外，可以采用無損電感檢流以降低功耗。\n 內(nèi)部5V和3.3V線性穩(wěn)壓器為MAX1533/MAX1537和柵極驅(qū)動(dòng)器，以及外部活動(dòng)負(fù)載供電，最大電流100mA。當(dāng)主PWM穩(wěn)壓器工作時(shí)，自動(dòng)自舉開關(guān)將內(nèi)部線性穩(wěn)壓器旁 \n? 固定頻率，電流模式控制 \n? 40/60優(yōu)化交錯(cuò) \n? 精確差分檢流輸入 \n? 具有100mA帶載能力的內(nèi)部5V和3.3V線性穩(wěn)壓器 \n? 輔助12V或可調(diào)150mA線性穩(wěn)壓器(僅對MAX1537) \n? Dual Mode?反饋—3.3V/5V固定或可調(diào)輸出(雙模)電壓 \n? 200kHz/300kHz/500kHz開關(guān)頻率 \n? 通用上電順序控制 \n? 可調(diào)過壓和欠壓保護(hù) \n? 6V至26V輸入范圍 \n? 2V ±0.75%基準(zhǔn)輸出 \n? 電源就緒輸出 \n? 軟關(guān)斷 \n? 5μA (典型值)關(guān)斷電流;

ADI

亞德諾

High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

General Description The MAX1533A/MAX1537A are dual step-down, switch mode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from

文件：1.409 Mbytes 頁數(shù)：38 Pages

MAXIM

美信

High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

General Description The MAX1533A/MAX1537A are dual step-down, switch mode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from

文件：1.409 Mbytes 頁數(shù)：38 Pages

MAXIM

美信

High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

General Description The MAX1533A/MAX1537A are dual step-down, switch mode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from

文件：1.409 Mbytes 頁數(shù)：38 Pages

MAXIM

美信

High-Efficiency, 5x Output, Main Power-Supply Controllers for Notebook Computers

General Description The MAX1533/MAX1537 are dual step-down, switch mode power-supply (SMPS) controllers with synchronous rectification, intended for main 5V/3.3V power generation in battery-powered systems. Fixed-frequency operation with optimal interleaving minimizes input ripple current from th

文件：763.81 Kbytes 頁數(shù)：38 Pages

MAXIM

美信

高效率、5路輸出、主電源控制器，用于筆記本電腦

MAX1533A/MAX1537A是雙路、降壓型、同步整流開關(guān)電源(SMPS)控制器，用于在電池供電系統(tǒng)中產(chǎn)生5V/3.3V主電源。該器件采用最優(yōu)交錯(cuò)的固定頻率工作方式，從最低輸入到最高輸入(26V)的整個(gè)輸入電壓范圍內(nèi)將輸入紋波電流降至最低。40/60最優(yōu)交錯(cuò)一直到輸入電壓下降至8.3V都不會(huì)發(fā)生占空比重疊，而使用180°錯(cuò)相工作的調(diào)節(jié)器在輸入降至10V時(shí)就出現(xiàn)了占空比重疊。通過一個(gè)檢流電阻來對輸出電流進(jìn)行檢測可實(shí)現(xiàn)精確的電流限制，而采用無損電感檢流則可以降低功耗。\n內(nèi)帶的5V和3.3V線性調(diào)節(jié)器驅(qū)動(dòng)MAX1533A/MAX1537A及其柵極驅(qū)動(dòng)器，以及外部的常備負(fù)載，總共可驅(qū)動(dòng)最高100 ? 固定頻率，電流模式控制 \n? 40/60最優(yōu)交錯(cuò) \n? 精確的差分電流檢測輸入 \n? 內(nèi)部5V和3.3V線性調(diào)節(jié)器的負(fù)載能力可達(dá)到100mA \n? 輔助12V或可調(diào)節(jié)的150mA線性調(diào)節(jié)器(僅MAX1537A) \n? Dual Mode?反饋—輸出可以是3.3V/5V固定電壓，也可以是可調(diào)輸出(雙模) \n? 開關(guān)頻率可設(shè)置為200kHz/300kHz/500kHz \n? 靈活的上電順序 \n? 可調(diào)節(jié)的過壓和欠壓保護(hù) \n? 輸入電壓范圍6V至26V \n? 2V ±0.75%基準(zhǔn)輸出 \n? 電源就緒輸出 \n? 軟關(guān)斷 \n? 關(guān)斷電流典型值為5μA;

ADI

亞德諾

Package：32-WFQFN 裸露焊盤；包裝：管件 類別：集成電路（IC） 電源控制器，監(jiān)視器 描述：IC POWER SUPPLY CONTROLER 32TQFN

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亞德諾

Package：32-WFQFN 裸露焊盤；包裝：管件 類別：集成電路（IC） 電源控制器，監(jiān)視器 描述：IC POWER SUPPLY CONTROLER 32TQFN

AD

亞德諾

Package：32-WFQFN 裸露焊盤；包裝：管件 類別：集成電路（IC） 電源控制器，監(jiān)視器 描述：IC POWER SUPPLY CONTROLER 32TQFN

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亞德諾