A number of conventional solutions have been available forthe design of a DC/DC converter where the output voltageis within the input voltage range—a common scenarioin Li-Ion battery-powered applications—but none werevery attractive until now. Conventional topologies, suchas SEPIC or boost followed by buck, have numerousdisadvantages, including low effi ciency, complex magnetics,polarity inversion and/or circuit complexity/cost. TheLTC®3785 buck-boost controller yields a simple, effi cient,low parts-count, single-converter solution that is easyto implement, thus avoiding the drawbacks associatedwith traditional solutions.
上傳時(shí)間： 2013-10-21
上傳用戶：ljt101007
Speed and accuracy don’t always go hand-in-handin DC/DC converter systems—that is, until now. TheLTC3811 is a dual output, fi xed frequency current modeDC/DC switching regulator controller designed for one oftoday’s most demanding power supply applications: highcurrent, low voltage processor core supplies.
上傳時(shí)間： 2013-11-21
上傳用戶：aix008
The LTM4601 DC/DC μModule regulator is a completehigh power density stepdown regulator for up to 12Acontinuous (14A peak) loads. The device is housed ina small 15mm ¥ 15mm ¥ 2.8mm LGA surface mountpackage, thus the large power dissipation is a challengein some applications. This thermal application note willprovide guidelines for using the μModule regulator inambient environments with or without air fl ow. Loadcurrent derating curves are provided for several inputvoltages and output voltages versus ambient temperatureand air fl ow.
上傳時(shí)間： 2013-10-19
上傳用戶：bakdesec
When a system designer specifies a nonisolated dc/dc powermodule, considering the needed input voltage range isequally as important as considering the required performanceattributes and features. Generally, nonisolated moduleshave either a narrow or a wide input voltage range. Narrowinputmodules typically have a nominal input voltage of3.3, 5, or 12 V. For systems that operate from a tightlyregulated input bus—such as those that do not use batterybackup—a narrow-input module is often adequate sincethe input remains fairly stable.Offering greater flexibility, wide-input modules operatewithin a range of 7 to 36 V, which includes the popular12- or 24-V industrial bus. This enables a single module tobe used for generating multiple voltages. These modulesare ideal for industrial controls, HVAC systems, vehicles,medical instrumentation, and other applications that usea loosely regulated distribution bus. In addition, systemspowered by a rectifier/battery charger with lead-acidbattery backup almost always require wide-input modules.System designers who choose power supplies may wantto take a close look at the latest generation of wide-inputdc/dc modules.
標(biāo)簽： Wide-input modules offer dc
上傳時(shí)間： 2014-12-24
上傳用戶：dragonhaixm
說(shuō)明：?jiǎn)闻胖辈澹⊿IP）封裝或雙排直插DIP（封裝）,任意值電壓輸入轉(zhuǎn)換出任意值電壓輸出，精度為±2%或±3%.簡(jiǎn)說(shuō)：DC/DC定電壓隔離雙隔離（輸入/輸出隔離、兩路輸出之間也隔離,雙輸出,兩路正壓或兩路負(fù)壓及或一正一負(fù)）轉(zhuǎn)換器,輸出共同一地線,瞬變響應(yīng)快,極低紋波噪聲輸出，無(wú)需任何外圍元件即可工作，腳位采用7PIN單列,14PIN雙列直插，小型封裝。應(yīng)用：便攜儀表,醫(yī)學(xué)儀表,自控裝置,防盜報(bào)警器,手持儀表,通訊設(shè)備等數(shù)字電路。
標(biāo)簽： DC-DC 模塊 電源應(yīng)用
上傳時(shí)間： 2013-10-31
上傳用戶：qq527891923
廣州致遠(yuǎn)電子有限公司近期推出了系列的工業(yè)級(jí)微功率DC-DC電源模塊，能夠廣泛應(yīng)用于低頻模擬電路，大功率IGBT驅(qū)動(dòng),純數(shù)字電路,模擬前端隔離電路,RS232/RS485/D422隔離通訊接口，CAN-BUS隔離通訊接口，運(yùn)算放大器電源和手持便攜儀表等多種場(chǎng)合。其全面性與成熟可靠的設(shè)計(jì)，可以解決用戶在電源和模擬前端部分設(shè)計(jì)中所遇到的較多難題，并可以節(jié)省開(kāi)發(fā)時(shí)間，使用戶的產(chǎn)品更快推出市場(chǎng).
標(biāo)簽： DC-DC 工業(yè)級(jí) 微功率 電源模塊
上傳時(shí)間： 2013-10-17
上傳用戶：妄想演繹師
本文著重介紹高效低紋波DC-DC降壓穩(wěn)壓器SCY99090的特性、典型應(yīng)用電路、電路中元器件的選型以及PCB的布局。
上傳時(shí)間： 2013-10-15
上傳用戶：hustfanenze
DC-DC經(jīng)典PCB布局
上傳時(shí)間： 2013-11-25
上傳用戶：sunjet
雙輸出同步DC/DC電源管理芯片LTC3407EDD-2及其應(yīng)用
上傳時(shí)間： 2015-09-27
上傳用戶：duoshen1989
ATC4060比較便宜的開(kāi)關(guān)型DC/DC芯片
上傳時(shí)間： 2013-12-17
上傳用戶：ANRAN
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