LM5145 Wide VIN Synchronous Buck Controller High Density Evaluation Module


Description & Features

Technical Documents

Support & Training

Order Now

Key Document
Download - PDF Icon


The LM5145EVM-HD-20A high density evaluation module (EVM) is designed to showcase the performance of the LM5145 high performance, synchronous buck DC-DC buck controller with wide input voltage range. The design is packaged in a miniature footprint with low component count. It operates over a wide input voltage range of 24 V to 72 V to deliver a fixed 5-V output with better than 1% setpoint accuracy and currents up to 20A. By virtue of the LM5145's minimum on-time of 40ns, operation at very low duty cycle is feasible. The LM5145 offers a full suite of protection features to ensure protection of the regulator during fault conditions. These include undervoltage lockout to ensure proper operation during voltage-sag conditions, programmable soft-start to reduce inrush current, hiccup-mode overcurrent protection and thermal shutdown. Precision enable, open-drain PGOOD indicator and SYNC IN /  SYNC OUT features are also provided.

  • 24V to 72V input voltage range
  • 5V output voltage, adjustable from 3.3V to 8V
  • Delivers up to 20A of load current
  • Free-running switching frequency of 220kHz, synchronizable to an external clock from -20% to +50%
  • Fully assembled, tested and proven PCB layout with 30-mm x 15-mm total footprint

Order Now
Part Number Buy from Texas Instruments or Third Party Buy from Authorized Distributor Status

LM5145 Wide VIN Synchronous Buck Controller High Density Evaluation Module


Pricing may vary.

Contact a Distributor  

TI's Standard Terms and Conditions for Evaluation Modules apply.

Technical Documents
Datasheet (2)
Title Abstract Type Size (KB) Date Views
PDF 2066 22 Jun 2017
PDF 2298 07 Jun 2016
User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1386 07 Jun 2017 236

TI Devices (2)

Part Number Name Product Family
LM25145  6V to 42V Synchronous Buck DC-DC Controller With Wide Duty Cycle Range  Step-down (buck) 
LM5145  75V Synchronous Buck Controller With Wide Input Voltage and Duty Cycle Ranges  Step-down (buck) 

Support & Training

Try our support forums.
Search expert answers for this part Ask a new question

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.