輸入電壓 5V/9V/12V/15V/24V DC 輸出電壓 3.3v/5V/9V/12V/15V/24V DC 如需其它規格,請咨詢順源科技公司 電氣特性 以下數據除特殊說明外,均是在TA=25° C, 標稱輸入電壓, 額定輸出電流時測得. 輸入特性 電壓范圍 +/- 10 % 濾波 陶瓷電容 隔離特性 額定電壓 1000 VDC 泄漏電流 1 m A 電阻 109 Ohm 電容 60 p TYP. 輸出特性 電壓精度 +/- 5 %, max. ( 20 MHz BW) 紋波及噪音 150mV p-p, max. 可持續短路時間 即時(
標簽: BxxxxLS-xW
上傳時間: 2014-09-09
上傳用戶:拔絲土豆
LM2596開關電壓調節器是降壓型電源管理單片集成電路,能夠輸出3A的驅動電流,同時具有很好的線性和負載調節特性。固定輸出版本有3.3v、5V、12V, 可調版本可以輸出小于37V的各種電壓。 該器件內部集成頻率補償和固定頻率發生器,開關頻率為150KHz,與低頻開關調節器相比較,可以使用更小規格的濾波元件。由于該器件只需4個外接元件,可以使用通用的標準電感,這更優化了LM2596的使用,極大地簡化了開關電源電路的設計。 其封裝形式包括標準的5腳TO-220封裝(DIP)和5腳TO-263表貼封裝(SMD)。 該器件還有其他一些特點:在特定的輸入電壓和輸出負載的條件下,輸出電壓的誤差可以保證在±4%的范圍內,振蕩頻率誤差在±15%的范圍內;可以用僅80μA的待機電流, 實現外部斷電;具有自我保護電路(一個兩級降頻限流保護和一個在異常情況下斷電的過溫完全保護電路) ※ 3.3v、5V、12V的固定電壓輸出和可調電壓輸出 ※ 可調輸出電壓范圍1.2V~37V±4% ※ 輸出線性好且負載可調節 ※ 輸出電流可高達3A ※ 輸入電壓可高達40V ※ 采用150KHz的內部振蕩頻率,屬于第二代開關電壓調節器,功耗小、效率高 ※ 低功耗待機模式,IQ的典型值為80μA ※ TTL斷電能力 ※ 具有過熱保護和限流保護功能 ※ 封裝形式:TO-220(T)和TO-263(S) ※ 外圍電路簡單,僅需4個外接元件, 且使用容易購買的標準電感
上傳時間: 2014-12-24
上傳用戶:ttpay
ATX是計算機的工作電源,作用是把交流220V的電源轉換為計算機內部使用的直流5V,12V,24V的電源。 ATX電源的特點:與AT電源相比,ATX電源增加了“+3.3v、+5VSB、PS-ON ”三個輸出。其中“+3.3v”輸出主要是供CPU用,而“+5VSB”、“PS-ON”輸出則體現了ATX電源的特點。ATX電源最主要的特點就是,它不采用傳統的市電開關來控制電源是否工作,而是采用“+5VSB、PS-ON”的組合來實現電源的開啟和關閉,只要控制“PS-ON”信號電平的變化,就能控制電源的開啟和關閉。“PS-ON”小于1V伏時開啟電源,大于4.5伏時關閉電源。
上傳時間: 2013-11-14
上傳用戶:xuanjie
當控制端電壓為0時,Q1基極電壓為(12-0.7=11.3v),改變R1的大小便可改變基極電流,當基極電流足夠大時,三極管飽合。
上傳時間: 2013-10-23
上傳用戶:wyiman
Typical industrial and automotive applications requiremultiple high current, low voltage power supply solutionsto drive everything from disc drives to microprocessors.For many of these applications, particularly thosethat have size constraints, the LT3501® dual step-downconverter is an attractive solution because it’s compactand inexpensive compared to a 2-chip solution. The dualconverter accommodates a 3v to 25V input voltage rangeand is capable of supplying up to 3A per channel. Thecircuit in Figure 1 produces 3.3v and 1.8V.
上傳時間: 2014-12-24
上傳用戶:372825274
Many system designers need an easy way to producea negative 3.3v power supply. In systems that alreadyhave a transformer, one option is to swap out the existingtransformer with one that has an additional secondarywinding. The problem with this solution is that manysystems now use transformers that are standard, offthe-shelf components, and most designers want toavoid replacing a standard, qualifi ed transformer with acustom version. An easier alternative is to produce thelow negative voltage rail by stepping down an existingnegative rail. For example, if the system already employsan off-the-shelf transformer with two secondary windingsto produce ±12V, and a –3.3v rail is needed, a negativebuck converter can produce the –3.3v output from the–12V rail.
上傳時間: 2013-10-09
上傳用戶:Jerry_Chow
Providing power for the Pentium® microprocessor family isnot a trivial task by any means. In an effort to simplify thistask we have developed a new switching regulator controlcircuit and a new linear regulator to address the needs ofthese processors. Considerable time has been spent developingan optimized decoupling network. Here are severalcircuits using the new LTC®1266 synchronous buck regulatorcontrol chip and the LT®1584 linear regulator toprovide power for Pentium processors and Pentium VREprocessors. The Pentium processor has a supply requirementof 3.3v ±5%. The Pentium VRE processor requires3.500V ±100mV.
上傳時間: 2013-11-01
上傳用戶:名爵少年
Portable, battery-powered operation of electronic apparatushas become increasingly desirable. Medical, remotedata acquisition, power monitoring and other applicationsare good candidates for batteryoperation. In some circumstances,due to space, power or reliability considerations,it is preferable to operate the circuitry from a single 1.5Vcell. Unfortunately, a 1.5V supply eliminates almost alllinear ICs as design candidates. In fact, the LM10 opamp-reference and the LT®1017/LT1018 comparators arethe only IC gain blocks fully specifi ed for 1.5V operation.Further complications are presented by the 600mV dropof silicon transistors and diodes. This limitation consumesa substantial portion of available supply range, makingcircuit design diffi cult. Additionally, any circuit designedfor 1.5V operation mustfunction at end-of-life batteryvoltage, typically 1.3v. (See Box Section, “Componentsfor 1.5V Operation.”)
標簽: Circuitry Operation Single Cell
上傳時間: 2013-10-30
上傳用戶:hz07104032
NCV8503是一款高精度微功耗電源穩壓器。輸出電流可達400mA。該器件提供多個級別的輸出電壓供客戶選擇:2.5V、3.3v、5.0V,及可調輸出版本。在負載為400mA時,最大壓降僅為0.6V,電壓輸出精度在±2.0%以內。當ENABLE=0V時,靜態電流低于1uA;如果ENABLE=5V,負載為100uA靜態電流僅為200uA。非常適合電池供電設備。支持RESET輸出(帶DELAY功能),可用于微處理器邏輯控制。當輸出電壓達到1.0V時,RESET電路即可正常工作。當電源上電及電壓跌落于門檻電壓時,RESET電路輸出復位信號。
上傳時間: 2013-11-22
上傳用戶:xieguodong1234
RSM232P隔離全功能RS-232收發器是一款具備電源隔離、電氣隔離的全功能RS-232收發器,使用RSM232P可以提高系統穩定性、簡化電路設計。電路完全符合EIA/TIA-232E和ITU-T V.28規格,采用3.3v或5V電源供電,具有2500VDC的隔離電壓,波特率可高達115200bps。
上傳時間: 2013-10-27
上傳用戶:qwe1234