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