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User's Guide
SNVA666A–June 2012–Revised April 2013
AN-2237 LM5018 Buck Evaluation Board
1 Introduction
The LM5018 evaluation board, Figure 1, provides the design engineer with a fully functional buck
regulator, employing the constant on-time (COT) operating principle. This evaluation board provides a 10V
output over an input range of 12.5V to 100V.
The board’s specifications are:
• Input Range: 12.5V to 95V, transients up to 100V (absolute maximum)
• Output Voltage: 10V
• Output Current: 300 mA
• Nominal Switching Frequency ~ 440 kHz
• Measured Efficiency: 88.4% at 300mA and VIN = 24V
• Board size: 5.5 cm × 4.5 cm
Figure 1. Evaluation Board (Top View)
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SNVA666A–June 2012–Revised April 2013 AN-2237 LM5018 Buck Evaluation Board
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