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2.97~40V Wide Input Range Boost/SEPIC/Flyback DC-DC Controller


Models (6)

Title Category Type Date
LM3478 PSpice Transient Model (Rev. C) PSpice Model ZIP 06 Oct 2019
LM3478 TINA-TI Boost and SEPIC Average Spice Model (Rev. A) TINA-TI Spice Model ZIP 04 Oct 2019
LM3478 TINA-TI Average SEPIC Reference Design (Rev. A) TINA-TI Reference Design TSC 04 Oct 2019
LM3478 Unencrypted PSpice Transient Model (Rev. B) PSpice Model ZIP 09 Apr 2019
LM3478 Unencrypted PSpice Average Model PSpice Model ZIP 01 Oct 2018
LM3478 PSpice Average Model PSpice Model ZIP 21 Mar 2018

Design kits & evaluation modules (1)

Name Part# Type
High Efficiency Low-Side N-Channel Controller for Switching Regulator LM3478EVAL Evaluation Modules & Boards

Reference designs

EMC-compliant 10/100Mbps Ethernet PHY reference design with IEEE802.3at Type-1 (≤ 12.95 W) PoE-PD

This reference design provides a cost-optimized solution for 10 to 100Mbps using the low-power Ethernet physical layer (PHY) DP83825 supporting 150m reach over CAT5e cable which is beyond the standard Ethernet distance limitation of 100 m (328 feet). Also, demonstrating power delivery over Ethernet (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Description Part Number Company Tool Type
3 LED Driver PMP7866 Texas Instruments Reference designs

Development tools (1)

Name Part# Type
Fly-Buck and Flyback Topology Selector FLYBUCK-FLYBACK-DESIGN-CALC Calculation Tools
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WEBENCH® Designer LM3478

  Min   Max Range
Vin  V 2.97 to 40.0V
Vout  V 1.26 to 300V
Iout  A ≤ 20A
Ambient Temp  °C -40 to 125°C