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LINEAR TECHNOLOGY  LTC3780IG#PBF  DC/DC Controller, 4V to 36V, 1 Output, Synchronous Boost, Synchronous Buck, 440kHz, SSOP-24

LINEAR TECHNOLOGY LTC3780IG#PBF
Manufacturer Part No:
LTC3780IG#PBF
Order Code:
1663718
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LTC3780IG#PBF is a high-performance buck-boost Switching Regulator Controller that operates from input voltages above, below or equal to the output voltage. The constant frequency current-mode architecture allows a phase-lockable frequency of up to 400kHz. With a wide 4 to 30V (36V maximum) input and output range and seamless transfers between operating modes. The operating mode of the controller is determined through the FCB pin. For boost operation, the FCB mode pin can select among burst mode operation, discontinuous mode and forced continuous mode. During buck operation, the FCB mode pin can select among skip-Cycle mode, discontinuous mode and forced Continuous mode. Burst mode operation and skip-cycle mode provide high efficiency operation at light loads while forced continuous mode and discontinuous mode operate at a constant frequency. Fault protection is provided by an output overvoltage comparator and internal foldback current limiting.
  • Power good output voltage monitor
  • Internal LDO for MOSFET supply
  • Quad N-channel MOSFET synchronous drive
  • VOUT Disconnected from VIN during shutdown
  • Adjustable soft-start current ramping
  • Foldback output current limiting
  • Selectable low current modes
  • Output overvoltage protection

Product Information

Supply Voltage Min:
4V
Supply Voltage Max:
36V
No. of Outputs:
1 Output
Duty Cycle (%):
99%
Controller IC Case Style:
SSOP
No. of Pins:
24Pins
Switching Frequency:
440kHz
Topology:
Synchronous Boost, Synchronous Buck
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

  • Automotive
  • Communications & Networking
  • Industrial
  • Automation & Process Control

Legislation and Environmental

Country of Origin:
Malaysia

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423990
Weight (kg):
.0002

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