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User's Guide
SNOA484D–June 2007–Revised April 2013
AN-1601 LM34917A Evaluation Board
1 Introduction
The LM34917A 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 5V
output over an input range of 8V to 33V. The circuit delivers load currents to 1A, with current limit set at
≊1.3A.
The board’s specification are:
• Input Voltage: 8V to 33V
• Output Voltage: 5V
• Maximum load current: 1.0A
• Minimum load current: 0A
• Current Limit: ≊1.3A
• Measured Efficiency: 91.6% (V
IN
= 8V, I
OUT
= 400 mA)
• Nominal Switching Frequency: 1.5 MHz
• Size: 2.6 in. x 1.6 in. x 0.5 in
Figure 1. Evaluation Board - Top Side
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SNOA484D–June 2007–Revised April 2013 AN-1601 LM34917A Evaluation Board
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