Datasheet Linear Technology LTC3729EUH#TRPBF — 数据表

制造商Linear Technology
系列LTC3729
零件号LTC3729EUH#TRPBF

550kHz,多相,高效,同步降压开关稳压器

数据表

Datasheet LTC3729
PDF, 356 Kb, 语言: en, 文件上传: Sep 23, 2017, 页数: 30
550kHz, PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator
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价格

打包

Package5x5 QFN-32
Package CodeUH
Package Index05-08-1693

参数化

ArchitectureConstant Frequency Current Mode
Demo BoardsDC509B
Design ToolsLTspice Model
Export Controlno
FeaturesPolyPhase
Frequency550 kHz
Integrated Inductorno
Ishutdown20 µA
Isupply0.58 mA
Max Phases2, 3, 4, 6, 8, 12
Monolithicno
Number of Outputs1
Operating Temperature Range0 to 85 °C
Output Current40 A
Polyphaseyes
Sense ResistorRsense
Switch Current40 A
Synchronousyes
TopologyBuck
Vin Max36 V
Vin Min4 V
Vout Max5 V
Vout Maximum5V
Vout Min0.8 V
Vref Accuracy Over Temp1 %

生态计划

RoHSCompliant

应用须知

  • PCB Layout Considerations for Non-Isolated Switching Power Supplies &mdash AN136
    PDF, 215 Kb, 档案已发布: Sep 20, 2012
    The best news when you power up a prototype supply board for the very first time is when it not only works, but also runs quiet and cool. Unfortunately, this does not always happen. A common problem of switching power supplies is “unstable” switching waveforms. Sometimes, waveform jittering is so pronounced that audible noise can be heard from the magnetic components. If the problem is related to the printed circuit board (PCB) layout, identifying the cause can be difficult. This is why proper PCB layout at the early stage of a switching supply design is very critical. Its importance cannot be overstated.
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设计须知

  • Active Voltage Positioning Reduces Output Capacitors &mdash Design Solutions 10
    PDF, 130 Kb, 档案已发布: Nov 1, 1999
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文章

  • Low Voltage, High Current DC/DC Power Supply with Load Sharing and Redundancy &mdash LT Journal
    PDF, 183 Kb, 档案已发布: Aug 9, 2004
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模型线

制造商分类

  • Power Management > Switching Regulator > Step-Down (Buck) Regulators > External Power Switch Buck Controllers

其他名称:

LTC3729EUHTRPBF, LTC3729EUH TRPBF