LM5118EVAL: 12V @ 3A, 5 ~ 75 Vin

Summary

The LM5118 evaluation board is designed to provide the design engineer with a fully functional, Emulated Current Mode Control, buck-boost power converter to evaluate the LM5118 controller IC. The evaluation board provides a 12V output with 3A of output current capability. The evaluation board’s wide input voltage range is from 75V to 5V, with operation down to 3V with some component changes. The evaluation board operates at 300 kHz, a good compromise between conversion efficiency, tradeoffs between buck and buck-boost mode requirements, and converter size.

Specifications

Manufacturer Texas Instruments
Category AC/DC and DC/DC Conversion
Sub-Category DC/DC SMPS - Single Output
Eval Board Part Number LM5118EVAL/NOPB-ND
Eval Board Supplier Texas Instruments
Eval Board Normally In Stock
Topology Step Up/Down
Outputs and Type 1 Non-Isolated
Voltage Out: Factory Set 12 V
Current Out 3 A
Voltage In 5 ~ 75 V
Efficiency @ Conditions >92%, 18V in, 12V @ 1 ~ 3 A
>90%, 24V in, 12V @ 1 ~ 3 A
>85%, 60V in, 12V @ 1 ~ 3 A
>80%, 5V in, 12V @ 1 ~ 3 A
Voltage Out Range
Features Current Limit (Adj. or Fixed)
Over Current Protection
Shutdown, Enable, Standby
Soft Start
Synchronizable
Thermal Protection
Switching Frequency 300 kHz
Standby Current [Typical] 1 µA
Quiescent Current [Typical] 4.5 mA
Component Count + Extras 38 + 10
Internal Switch No
Design Author Texas Instruments
Application / Target Market PoE, Power Over Ethernet
Standby Current [Maximum] 10 µA
Quiescent Current [Maximum] 5.5 mA
Main I.C. Base Part LM5118
Date Created By Author
Date Added To Library 2011-03

Eval Board

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Support Documents & Media

LM5118EVAL - User Guide LM5118 - Datasheet Ultra Librarian Software:CAD Symbols and Footprints (Zip File) TI's CAD/CAE Symbols and Footprint Search

Media

LM5118EVAL_Schematic.JPG LM5118EVAL_Board.JPG LM5118EVAL_Chart.JPG