Datasheet Linear Technology LTC3729EG#TRPBF — Datenblatt

HerstellerLinear Technology
SerieLTC3729
ArtikelnummerLTC3729EG#TRPBF

550 kHz, PolyPhase, hocheffizienter, synchroner Abwärtsschaltregler

Datenblätter

Datasheet LTC3729
PDF, 356 Kb, Sprache: en, Datei hochgeladen: Sep 23, 2017, Seiten: 30
550kHz, PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator
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Preise

Verpackung

PackageSSOP-28
Package CodeG
Package Index05-08-1640 (G28)

Parameter

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 %

Öko-Plan

RoHSCompliant

Anwendungshinweise

  • PCB Layout Considerations for Non-Isolated Switching Power Supplies &mdash AN136
    PDF, 215 Kb, Datei veröffentlicht: 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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Konstruktionshinweise

  • Active Voltage Positioning Reduces Output Capacitors &mdash Design Solutions 10
    PDF, 130 Kb, Datei veröffentlicht: Nov 1, 1999
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Artikel

  • Low Voltage, High Current DC/DC Power Supply with Load Sharing and Redundancy &mdash LT Journal
    PDF, 183 Kb, Datei veröffentlicht: Aug 9, 2004
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Modellreihe

Herstellerklassifikation

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

Andere Namen:

LTC3729EGTRPBF, LTC3729EG TRPBF

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