Low

LINEAR TECHNOLOGY  LT1738EG#PBF  DC/DC Controller, Ultra Low Noise, 2.55V to 20V, 1 Output, Boost, Cuk, Flyback, 250kHz, SSOP-20

LINEAR TECHNOLOGY LT1738EG#PBF
Manufacturer Part No:
LT1738EG#PBF
Order Code:
1273489
Technical Datasheet:
See all Technical Docs

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Product Overview

The LT1738EG#PBF is a Switching Regulator Controller designed to lower conducted and radiated electromagnetic interference (EMI). Ultralow noise and EMI are achieved by controlling the voltage and current slew rates of an external N-channel MOSFET switch. Current and voltage slew rates can be independently set to optimize harmonic content of the switching waveforms vs efficiency. The LT1738 can reduce high frequency harmonic power by as much as 40dB with only minor losses in efficiency. It utilizes a current-mode architecture optimized for single switch topologies such as boost, flyback and Cuk. The IC includes gate drive and all necessary oscillator, control and protection circuitry. Unique error amp circuitry can regulate both positive and negative voltages. The internal oscillator may be synchronized to an external clock for more accurate placement of switching harmonics.
  • Greatly reduced conducted and radiated EMI
  • Low switching harmonic content
  • Independent control of output switch voltage and current slew rates
  • Greatly reduced need for external filters
  • Single N-channel MOSFET driver
  • Easily synchronized to external clock
  • Regulates positive and negative voltages
  • Easier layout than with conventional switchers

Product Information

Supply Voltage Min:
2.55V
Supply Voltage Max:
20V
No. of Outputs:
1 Output
Duty Cycle (%):
93.5%
Controller IC Case Style:
SSOP
No. of Pins:
20Pins
Switching Frequency:
250kHz
Topology:
Boost, Cuk, Flyback
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

  • Communications & Networking
  • Sensing & Instrumentation
  • Automation & Process Control
  • Industrial
  • Medical

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):
.02

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