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

LINEAR TECHNOLOGY LTC3729EUH#PBF
LINEAR TECHNOLOGY LTC3729EUH#PBF
Manufacturer Part No:
LTC3729EUH#PBF
Order Code:
2295133
Technical Datasheet:
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LINEAR TECHNOLOGY LTC3729EUH#PBF
LINEAR TECHNOLOGY LTC3729EUH#PBF

Image is for illustrative purposes only. Please refer to product description.

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

Product Information

Supply Voltage Min:
4V
Supply Voltage Max:
36V
No. of Outputs:
1 Output
Duty Cycle (%):
99.5%
Controller IC Case Style:
QFN
No. of Pins:
32Pins
Switching Frequency:
590kHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Power Management
  • Computers & Computer Peripherals

Legislation and Environmental

Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.000267

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