DC/DC Controller, Poly Phase, 4.5V to 38V, 1 Output, Synchronous Boost, 900kHz, QFN-28

LTC3787EUFD#PBF - DC/DC Controller, Poly Phase, 4.5V to 38V, 1 Output, Synchronous Boost, 900kHz, QFN-28

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

Manufacturer Part No:
Order Code:
Technical Datasheet:
See all Technical Docs

Product Overview

The LTC3787EUFD#PBF is a high-performance PolyPhase single output synchronous boost Converter Controller that drives two N-channel power MOSFET stages out-of-phase. Multiphase operation reduces input and output capacitor requirements and allows the use of smaller inductors than the single-phase equivalent. Synchronous rectification increases efficiency, reduces power losses and eases thermal requirements, enabling high power boost applications. A 4.5 to 38V input supply range encompasses a wide range of system architectures and battery chemistries. When biased from the output of the boost converter or another auxiliary supply, it can operate from an input supply as low as 2.5V after start-up. The operating frequency can be set for a 50 to 900kHz range or synchronized to an external clock using the internal PLL. PolyPhase operation allows the LTC3787 to be configured for 2-, 3-, 4-, 6- and 12-phase operation. The SS pin ramps the output voltage during start-up.
  • 2-phase Operation reduces required input and output capacitance and power supply induced noise
  • Synchronous operation for highest efficiency and reduced heat dissipation
  • ±1% 1.2V Reference voltage
  • RSENSE or inductor DCR current sensing
  • <8µA Low shutdown current
  • Internal LDO powers gate drive from VBIAS or EXTVCC


Automotive, Industrial, Medical, Aerospace, Defence, Military

Product Information

1 Output
Synchronous Boost (Step Up)
MSL 1 - Unlimited
Find similar products Choose and modify the attributes above to find similar products.

Associated Products

Compare Selected

Related Searches


No Longer Stocked

No longer stocked:: true No Longer Manufactured::

Customer Reviews


Like to see information about this product from other customers?

 Read discussions, blogs, documents from our community members.


Select document type(s) you want to see and click “Apply Filters” button
Post a question to one of our experts or start a discussion and get responses from supplier experts and fellow engineers in our community.