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LINEAR TECHNOLOGY  LTC3709EUH#PBF  DC/DC Controller, 2-Phase, 5V to 31V, 1 Output, Synchronous Buck, 200kHz, QFN-32

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

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

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

Product Information

Supply Voltage Min:
5V
Supply Voltage Max:
31V
No. of Outputs:
1 Output
Duty Cycle (%):
90%
Controller IC Case Style:
QFN
No. of Pins:
32Pins
Switching Frequency:
200kHz
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

  • Computers & Computer Peripherals
  • Power Management

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):
.000124

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