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User's Guide
SNVA258B–June 2007–Revised April 2013
AN-1664 LM2735X 5-Pin SOT23 Demo Board
1 Introduction
This demo board uses the LM2735X 1.6MHz DC-DC switching regulator that converts 3V to 5.5V input to
12V output for up to 500mA load current depending on Vin. This is a 2-layer board using the bottom layer
as a Ground plane.
A bill of materials describes the parts used on this demo board. A schematic and layout have also been
included, along with measured performance characteristics. The above restrictions for the input voltage
are valid only for the demo board as shipped with the demo board schematic shown in Figure 1.
2 Operating Conditions
• V
IN
= 3V to 5.5V
• V
O
= 12V
• I
O
_max @ 3Vin = 300mA
• I
O
_max @ 5Vin = 500mA
Figure 1. LM2735X 5-Pin SOT Schematic
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1
SNVA258B–June 2007–Revised April 2013 AN-1664 LM2735X 5-Pin SOT23 Demo Board
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