Texas Instruments AN-1601 LM34917A User Manual

1 Introduction
The LM34917A evaluation board,
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
• Nominal Switching Frequency: 1.5 MHz
• Size: 2.6 in. x 1.6 in. x 0.5 in
All trademarks are the property of their respective owners.
SNOA484D – June 2007 – Revised April 2013
Submit Documentation Feedback
AN-1601 LM34917A Evaluation Board
Figure 1, provides the design engineer with a fully functional buck
= 8V, I = 400 mA)
IN OUT
Figure 1. Evaluation Board - Top Side
Copyright © 2007–2013, Texas Instruments Incorporated
User's Guide
SNOA484D – June 2007 – Revised April 2013
AN-1601 LM34917A Evaluation Board
1