150W Boost Converter with LM5121 Reference Design

(ACTIVE) PMP8673

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

The PMP8673 reference design is a synchronous boost converter optimized for high efficiency while maintaining a small form factor. This reference design has a voltage input range of 34.5-37.5V (35V nominal) and provides an output voltage of 55.5V. The synchronous boost topology enables efficiencies greater than 97% in the 2-3A load range. The switching frequency is set for 400Khz allowing the use of smaller external components and a total board area of less than 60 square centimeters.

Features
  • Efficiency >97% in a load range of 2A..3A
  • Ultra small with high power density
  • Adjustable output voltage from 38V to 55.5V
  • 150W output power
  • 200W hold up for 10ms
  • Output ripple < 0.5%
  • 90% transient response < 1%
  • Load regulation < 0.05%
  • With disconnection switch

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

Download ready-to-use system files to speed your design process. Get Viewer.

Download Design Files


Bill of Materials (BOM)

Find the complete list of components in this reference design.

Download BOM

Parametrics
 PMP8673.1
(Output Voltage 1)
Vin (Min) (V)34.5
Vin (Max) (V)37.5
Vout (Nom) (V)55.5
Iout (Max) (A)3
Output Power (W)166.5
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBoost- Synchronous

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
CSD18532Q5B  60-V, N-Channel NexFET™ Power MOSFET  MOSFETs  Sample & Buy View Design Kits & Evaluation Modules
LM5121  3-65V Wide Vin, Current Mode Synchronous Boost with Disconnection Switch Control  Step-up (boost)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
CSD18532Q5B VSON-CLIP (DNK)| 8 Download -
LM5121 Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 455 09 Oct 2015 12
Design files (5)
Title Abstract Type Size (KB) Date Views
ZIP 41 09 Oct 2015 10
ZIP 381 09 Oct 2015 9
PDF 677 09 Oct 2015 5
PDF 81 09 Oct 2015 4
PDF 407 09 Oct 2015 19

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.

Blogs