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DC-DC轉換器

隔離DC-DC電源模塊技術資料下載

產品廣泛應用電力，通訊、儀表儀器、醫療設備，工業控制、汽車電子、安防、廣電儀器等領域。

標簽： DC-DC 隔離電源模塊技術資料

上傳時間： 2013-10-16

上傳用戶：JGR2013
開關穩壓電源報告

本設計采用一種MC34063芯片的DC-DC電源變換控制器作為開關穩壓電源的控制核心, 實現了其輸入電壓為交流220V±20％，輸出電壓為直流30V～36V的可調范圍，最大電流2A，電壓調整率、負載調整率達到要求等功能。其中DC-DC電源變換控制器提供的直流輸出不僅與供電電源共地,而且有兩組與供電電源隔離.

標簽： 開關穩壓電源報告

上傳時間： 2013-10-10

上傳用戶：非洲之星
DCDC模塊輸入端電壓反加后的影響分析

在航天等空間產品中使用的分布式供電系統中，總體電路一般只提供27~30 V的直流一次電源，各單機產品大多采用DC/DC模塊將該一次電源轉換為所需的二次電源，并實現一次地與二次地的隔離。分析了INTERPOINT公司的DC/DC模塊的輸入端反接后，輸入電壓對DC/DC模塊、電源保護濾波電路及負載的影響，通過仿真與驗證試驗，得出電源模塊輸入端反接后單機產品中電源保護電路發生作用，對產品中負載無影響，可以繼續使用。電源模塊失效分析對航天產品中電源模塊中出現類似的故障后的處理提供了參考。

標簽： DCDC 模塊分輸入端

上傳時間： 2013-11-05

上傳用戶：kangqiaoyibie
簡單、高效USB電源管理IC解決方案

Linear Technology offers a variety of devices that simplifyconverting power from a USB cable, but the LTC®3455represents the highest level of functional integration yet. The LTC3455 seamlessly manages power flowbetween an AC adapter, USB cable and Li-ion battery,while complying with USB power standards, all from a4mm × 4mm QFN package. In addtion, two high efficiencysynchronous buck converters generate low voltage railswhich most USB-powered peripherals require. TheLTC3455 also provides power-on reset signals for themicroprocessor, a Hot SwapTM output for poweringmemory cards as well as an uncommitted gain blocksuitable for use as a low-battery comparator or an LDOcontroller. The PCB real estate required for the entire USBpower control circuit and two DC/DC converters is only225mm2.

標簽： USB 電源管理IC 方案

上傳時間： 2013-11-02

上傳用戶：名爵少年
替代LM2596的A7596

完全替代原裝國半DC-DC產品LM2596系列產品，性價比優勢！

標簽： A7596 2596 LM

上傳時間： 2013-10-24

上傳用戶：moshushi0009
FP6291

DC/DC 升壓IC：The FP6291 is a current mode boost DC-DC converter. Its PWM circuitry with built-in 0.25 Ω power MOSFET make this regulator highly power efficient. The internal compensation network also minimizes as much as 6 external component counts. The non-inverting input of error amplifier connects to a 0.6V precision reference voltage and internal soft-start function can reduce the inrush current. The FP6291 is available in the SOT23-6L package and provides space-saving PCB for the application fields.

標簽： 6291 FP

上傳時間： 2013-11-07

上傳用戶：3294322651
DN378 低靜態電流單片式降壓型穩壓器

Automobile electronic systems place high demands ontoday’s DC/DC converters. They must be able to preciselyregulate an output voltage in the face of wide temperatureand input voltage ranges—including load dump transientsin excess of 60V and cold crank voltage drops to 4V. Theconverter must also be able to minimize battery drain inalways-on systems by maintaining high effi ciency over abroad load current range. Similar demands are made bymany 48V nonisolated telecom applications, 40V FireWireperipherals and battery-powered applications with autoplug adaptors. The LT3437’s best in classperformancemeets all of these requirements in a small thermallyenhanced 3mm × 3mm DFN package.

標簽： 378 DN 低靜態電流單片式

上傳時間： 2013-10-15

上傳用戶：stampede
高功率PoE PD接口與集成反激式控制器

To this day, Power over Ethernet (PoE) continues to gainpopularity in today’s networking world. The 12.95Wdelivered to the Powered Device (PD) input supplied bythe Power Sourcing Equipment (PSE) is a universal supply.Each PD provides its own DC/DC conversion from anominal 48V supply, thus eliminating the need for a correctvoltage wall adapter. However, higher power devicescan not take advantage of standard PoE because of itspower limitations, and must rely on a large wall adapteras their primary supply. The new LTC4268-1 breaks thispower barrier by allowing for power of up to 35W for suchpower-hungry 2-pair PoE applications. The LTC4268-1provides a complete solution by integrating a high powerPD interface control with an isolated fl yback controller.

標簽： PoE 高功率 PD接口集成

上傳時間： 2014-12-24

上傳用戶：jasson5678
DN443 2.2V降壓型同步控制器

Many telecommunications and computing applicationsneed high effi ciency step-down DC/DC converters thatcan operate from a very low input voltage. The highoutput power synchronous controller LT3740 is idealfor these applications, converting input supplies rangingfrom 2.2V to 22V to outputs as low as 0.8V with loadcurrents from 2A to 20A. Applications include distributedpower systems, point-of-load regulation and conversionof logic supplies.

標簽： 443 2.2 DN 降壓型

上傳時間： 2013-11-05

上傳用戶：zhf01y
DN442 I2C可控降壓緊湊型同步DC/DC穩壓器

The LTC®3562 quad output step-down regulator is designedfor multicore handheld microprocessor applications thatoperate from a single Li-Ion battery. Its four monolithic, higheffi ciency buck regulators support Intel’s mobile CPU P-Stateand C-State energy saving operating modes. The outputvoltages are independently controllable via I2C, and eachoutput can be independently started and shut down. Designerscan choose from power saving pulse-skipping mode orBurst Mode® operation, or select low noise LDO mode. Thespace-saving LTC3562 is available in a 3mm × 3mm QFNpackage and requires few external components.

標簽： DC 442 I2C DN

上傳時間： 2013-10-07

上傳用戶：1583060504