User's Guide
SNVA298A – November 2007 – Revised April 2013
AN-1748 LM5005 Evaluation Board
1
Introduction
The LM5005 evaluation board is designed to provide the design engineer with a fully functional power
converter based on emulated current mode control to evaluate the LM5005 regulator IC. The evaluation
board provides a 5 V output with a 2.5A current capability. The ultra-wide input voltage ranges from 7 V to
75 V. The design operates at 300 kHz, a good compromise between conversion efficiency and solution
size. The printed circuit board (PCB) consists of 2 layers of 2 ounce copper on FR4 material with a
thickness of 0.06 inches. This document contains the evaluation board schematic, Bill-of-Materials (BOM)
and a quick setup procedure. For complete circuit design information, see the LM5005 High Voltage 2.5
Amp Buck Regulator Data Sheet (
SNVS397
).
The performance of the evaluation board is as follows:
Input Range: 7 to 75 V
Output Voltage: 5 V
Output Current: 0 to 2.5A
Frequency of Operation: 300 KHz
Board Size: 2.75 X 1 X 0.4 inches
Load Regulation: 1%
Line Regulation: 0.1%
Over Current Limiting
2
Evaluation Board Schematic
Figure 1. Schematic
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SNVA298A – November 2007 – Revised April 2013
AN-1748 LM5005 Evaluation Board
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