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LINEAR TECHNOLOGY  LT3741IUF#PBF  DC/DC Controller, Constant Current, 6V to 36V, 1 Output, Synchronous Buck, 1.07MHz, QFN-20

LINEAR TECHNOLOGY LT3741IUF#PBF
Manufacturer Part No:
LT3741IUF#PBF
Order Code:
2294949
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LT3741IUF#PBF is a fixed frequency synchronous step-down DC/DC Controller designed to accurately regulate the output current at up to 20A. The average current-mode controller will maintain inductor current regulation over a wide output voltage range of 0V to (VIN - 2V). The regulated current is set by an analog voltage on the CTRL pins and an external sense resistor. Due to its unique topology, the LT3741 is capable of sourcing and sinking current. The regulated voltage and overvoltage protection are set with a voltage divider from the output to the FB pin. Soft-Start is provided to allow a gradual increase in the regulated current during startup. The switching frequency is programmable from 200 to 1MHz through an external resistor on the RT pin or through the use of the SYNC pin and an external clock signal.
  • Control pin provides accurate control of regulated output current
  • ±1.5% Voltage regulation accuracy
  • ±6% Current regulation accuracy
  • Average current mode control
  • <1µA shutdown current
  • Up to 94% efficiency
  • Additional pin for thermal control of load current

Product Information

Supply Voltage Min:
6V
Supply Voltage Max:
36V
No. of Outputs:
1 Output
Duty Cycle (%):
-
Controller IC Case Style:
QFN
No. of Pins:
20Pins
Switching Frequency:
1.07MHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Min:
-40°C
Operating Temperature Max:
125°C
Packaging:
Cut Tape
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Industrial
  • 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):
.00016

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