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LTC3709EUH#PBF

DC/DC Controller, 2-Phase, 5V to 31V, 1 Output, Synchronous Buck, 200kHz, QFN-32

LINEAR TECHNOLOGY LTC3709EUH#PBF

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Manufacturer Part No:
LTC3709EUH#PBF
Order Code:
1273950
Technical Datasheet:
LTC3709EUH#PBF   Datasheet
See all Technical Docs

Product Overview

The LTC3709EUH#PBF is a 2-phase single output synchronous step-down Switching Regulator Controller uses a constant on-time, valley current control architecture to deliver very low duty cycles without requiring a sense resistor. Operating frequency is selected by an external resistor and is compensated for variations in input supply voltage. An internal phase-locked loop allows the LTC3709 to be synchronized to an external clock. A TRACK pin is provided for tracking or sequencing the output voltage among several LTC3709 chips or an LTC3709 and other DC/DC regulators. Soft-start is accomplished using an external timing capacitor. Fault protection is provided by an output overvoltage comparator and an optional short-circuit shutdown timer. The current limit level is user programmable. A wide supply range allows voltages as high as 31V to step down to 0.6V.
  • PolyPhase® Valley current mode controller
  • Synchronizable to an external clock with PLL
  • Coincident or ratiometric tracking
  • True remote sensing differential amplifier
  • High efficiency at both light and heavy loads
  • Power good output voltage monitor
  • 0.6V ±1% Reference
  • Adjustable current limit
  • Programmable soft-start and operating frequency

Applications

Computers & Computer Peripherals, Power Management

Product Information

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:
5V

:
31V

:
1 Output

:
90%

:
QFN

:
32Pins

:
200kHz

:
Synchronous Buck (Step Down)

:
-40°C

:
85°C

:
-

:
-

:
MSL 1 - Unlimited
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Technical Docs (2)

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