Datasheet Linear Technology LTC3729LEUH-6#PBF

ManufacturerLinear Technology
SeriesLTC3729L-6
Part NumberLTC3729LEUH-6#PBF

PolyPhase, Synchronous Step-Down Switching Regulator

Datasheets

Datasheet LTC3729L-6
PDF, 356 Kb, Language: en, File uploaded: Sep 23, 2017, Pages: 28
PolyPhase, Synchronous Step-Down Switching Regulator
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Prices

Packaging

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

Parametrics

ArchitectureConstant Frequency Current Mode
Design ToolsLTspice Model
Export Controlno
FeaturesPolyPhase
Frequency550 kHz
Integrated Inductorno
Ishutdown20 µA
Isupply0.47 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 Max30 V
Vin Min4 V
Vout Max5 V
Vout Maximum5V
Vout Min0.6 V
Vref Accuracy Over Temp1 %

Eco Plan

RoHSCompliant

Application Notes

  • PCB Layout Considerations for Non-Isolated Switching Power Supplies &mdash AN136
    PDF, 215 Kb, File published: 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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Model Line

Series: LTC3729L-6 (2)

Manufacturer's Classification

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

Other Names:

LTC3729LEUH-6PBF, LTC3729LEUH-6 PBF, LTC3729LEUH6#PBF, LTC3729LEUH 6#PBF