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LINEAR TECHNOLOGY  LTC3789EGN#PBF  DC/DC Controller, 4V to 38V, 1 Output, Synchronous Boost, Synchronous Buck, 710kHz, SSOP-28

LINEAR TECHNOLOGY LTC3789EGN#PBF
Manufacturer Part No:
LTC3789EGN#PBF
Order Code:
2102662
Technical Datasheet:
See all Technical Docs

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

Product Overview

The LTC3789EGN#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 600kHz, while an output current feedback loop provides support for battery charging. With a wide 4 to 38V (40V maximum) input and output range and seamless, low noise transitions between operating regions. The operating mode of the controller is determined through the MODE/PLLIN pin. The MODE/PLLIN pin can select between pulse-skipping mode and forced continuous mode operation and allows the IC to be synchronized to an external clock. Pulse-skipping mode offers high efficiency and low ripple at light loads, while forced continuous mode operates at a constant frequency for noise-sensitive applications. A PGOOD pin indicates when the output is within 10% of its designed set point.
  • Single inductor architecture allows VIN above, below or equal to the regulated VOUT
  • Programmable input or output current mode control
  • No reverse current during start-up
  • Power good output voltage monitor quad N-channel MOSFET synchronous drive
  • VOUT Disconnected from VIN during shutdown
  • True soft-start and VOUT short protection, even in boost mode

Product Information

Supply Voltage Min:
4V
Supply Voltage Max:
38V
No. of Outputs:
1 Output
Duty Cycle (%):
90%
Controller IC Case Style:
SSOP
No. of Pins:
28Pins
Switching Frequency:
710kHz
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
  • Industrial
  • Automation & Process Control
  • 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):
.000512