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LTC3729EUH#PBF - 

DC/DC Controller, High Efficiency, Poly Phase, 4V to 36V, 1 Output, Synchronous Buck, 590kHz, QFN-32

LTC3729EUH#PBF - DC/DC Controller, High Efficiency, Poly Phase, 4V to 36V, 1 Output, Synchronous Buck, 590kHz, QFN-32
LTC3729EUH#PBF - DC/DC Controller, High Efficiency, Poly Phase, 4V to 36V, 1 Output, Synchronous Buck, 590kHz, QFN-32

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Manufacturer Part No:
LTC3729EUH#PBF
Newark Part No.:
56M8263

Product Information

:
4
:
36
:
1 Output
:
99.5
:
QFN
:
32
:
590
:
Synchronous Buck (Step Down)
:
-40
:
85
:
Cut Tape
:
-
:
-
:
Yes
:
MSL 1 - Unlimited
:
To Be Advised
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Product Overview

The LTC3729EUH#PBF is a multiple phase synchronous step-down current-mode Switching Regulator Controller that drives N-channel external power MOSFET stages in a phase-lockable fixed frequency architecture. The PolyPhase controller drives its two output stages out of phase at frequencies up to 550kHz to minimize the RMS ripple currents in both input and output capacitors. The output clock signal allows expansion for up to 12 evenly phased controllers for systems requiring 15 to 200A of output current. The multiple phase technique effectively multiplies the fundamental frequency by the number of channels used, improving transient response while operating each channel at an optimum frequency for efficiency. Thermal design is also simplified. An internal differential amplifier provides true remote sensing of the regulated supply’s positive and negative output terminals as required for high current application. RUN/SS pin provides both soft-start and optional timed, short-circuit shutdown.
  • Reduces required input capacitance and power supply induced noise
  • ±1% Output voltage accuracy
  • True remote sensing differential amplifier
  • PolyPhase® extends from two to twelve phases
  • Reduces the size and value of inductors
  • Current mode control ensures current sharing
  • Power good output voltage indicator
  • Adjustable soft-start current ramping
  • Internal current foldback plus shutdown timer
  • Overvoltage soft-latch eliminates nuisance trips

Applications

Power Management, Computers & Computer Peripherals

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