2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

General Description The MAX5090A/B/C easy-to-use, high-efficiency, high voltage step-down DC-DC converters operate from an input voltage up to 76V, and consume only 310μA quiescent current at no load. This pulse-width-modulated (PWM) converter operates at a fixed 127kHz switching frequency at hea

文件：658.04 Kbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

General Description The MAX5090A/B/C easy-to-use, high-efficiency, high voltage step-down DC-DC converters operate from an input voltage up to 76V, and consume only 310μA quiescent current at no load. This pulse-width-modulated (PWM) converter operates at a fixed 127kHz switching frequency at hea

文件：658.04 Kbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

General Description The MAX5090A/B/C easy-to-use, high-efficiency, high voltage step-down DC-DC converters operate from an input voltage up to 76V, and consume only 310μA quiescent current at no load. This pulse-width-modulated (PWM) converter operates at a fixed 127kHz switching frequency at hea

文件：658.04 Kbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

文件：2.15739 Mbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

文件：2.15739 Mbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

文件：664.12 Kbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

文件：2.15739 Mbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

文件：2.15739 Mbytes 頁數(shù)：17 Pages

MAXIM

美信

2A, 76V, High-Efficiency MAXPower Step-Down DC-DC Converters

文件：2.15739 Mbytes 頁數(shù)：17 Pages

MAXIM

美信

2A、76V、高效MAXPower、降壓型DC-DC轉(zhuǎn)換器

MAX5090A/B/C是簡單易用的高效率、高壓、降壓型DC-DC轉(zhuǎn)換器，能夠工作在高達(dá)76V的輸入電壓，空載時(shí)僅消耗310μA的靜態(tài)電流。脈寬調(diào)制(PWM)轉(zhuǎn)換器重載時(shí)工作在固定的127kHz開關(guān)頻率，輕載時(shí)可自動(dòng)切換到跳脈沖模式，以實(shí)現(xiàn)低靜態(tài)流和高效率。MAX5090包括內(nèi)部頻率補(bǔ)償，簡化了電路設(shè)計(jì)。器件還可以同步到外部系統(tǒng)時(shí)鐘，用于噪聲敏感系統(tǒng)。MAX5090內(nèi)部采用低導(dǎo)通電阻、高電壓DMOS晶體管，可獲得高效率、降低系統(tǒng)成本。此器件包括欠壓鎖定、逐周期限流、“打嗝”式輸出短路保護(hù)及熱關(guān)斷功能。\n\n MAX5090可提供高達(dá)2A的輸出電流。提供外部關(guān)斷模式，具有19μA ( ? 6.5V至76V的寬輸入電壓范圍\n? 提供固定(3.3V、5V)或可調(diào)輸出電壓(1.265V至11V)\n? 2A輸出電流\n? 效率高達(dá)92%\n? 內(nèi)置0.26Ω高邊DMOS FET\n? 空載時(shí)，靜態(tài)電流為310μA\n? 19μA的關(guān)斷電流\n? 內(nèi)部頻率補(bǔ)償\n? 固定127kHz開關(guān)頻率\n? 外部頻率同步\n? 熱關(guān)斷及短路電流限制\n? -40°C至+125°C汽車級(jí)溫度范圍\n? 16引腳(5mm x 5mm)薄型QFN封裝\n? +70°C時(shí)可耗散2.67W功率;

ADI

亞德諾