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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1
SNOA484D – June 2007 – Revised April 2013
AN-1601 LM34917A Evaluation Board
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