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LINEAR TECHNOLOGY  LT3845MPFE#PBF  DC/DC Controller, Current Mode, 4V to 60V, 1 Output, Synchronous Buck, 500kHz, TSSOP-16

LINEAR TECHNOLOGY LT3845MPFE#PBF
Manufacturer Part No:
LT3845MPFE#PBF
Order Code:
2115925
Technical Datasheet:
See all Technical Docs

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Product Overview

The LT3845MPFE#PBF is a high voltage synchronous current-mode Controller used for medium to high power high efficiency supplies. It offers a wide 4 to 60V input range (7.5V minimum start-up voltage). An onboard regulator simplifies the biasing requirements by providing IC power directly from VIN. Burst Mode operation maintains high efficiency at light loads by reducing IC quiescent current to 120µA. Light load efficiency is also improved with the reverse inductor current inhibit function which supports discontinuous operation. Additional features include adjustable fixed operating frequency that can be synchronized to an external clock for noise sensitive applications, gate drivers capable of driving large N-channel MOSFETs, a precision undervoltage lockout, 10µA shutdown current, short-circuit protection and a programmable soft-start.
  • Adaptive nonoverlap circuitry prevents switch shoot-through
  • Reverse inductor current inhibit for discontinuous operation improves efficiency with light loads
  • Programmable soft-start
  • 120µA No load quiescent current
  • 10µA Shutdown supply current
  • 1% Regulation accuracy
  • Standard gate N-channel power MOSFETs
  • Current limit unaffected by duty cycle
  • Reverse overcurrent protection

Product Information

Supply Voltage Min:
4V
Supply Voltage Max:
60V
No. of Outputs:
1 Output
Duty Cycle (%):
-
Controller IC Case Style:
TSSOP
No. of Pins:
16Pins
Switching Frequency:
500kHz
Topology:
Synchronous Buck (Step Down)
Operating Temperature Min:
-55°C
Operating Temperature Max:
125°C
Packaging:
Each
Product Range:
-
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Automotive
  • Avionics
  • Industrial
  • Power Management
  • Communications & Networking

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):
.000258

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