Datasheet

V
SW
I
L
2 µs/Div
5V/Div
200 mA/Div
V
OUT
5 mV/Div
AC coupled
V
SW
I
L
2 µs/Div
5V/Div
200 mA/Div
V
OUT
10 mV/Div, AC coupled
Demo Board Layout www.ti.com
Typical Switching Waveform Typical Switching Waveform
V
IN
= 5.0 V, V
OUT
= -5.0 V, No Load V
IN
= 5.0 V, V
OUT
= -5.0 V, I
OUT
= 70 mA
13 Demo Board Layout
The LMR70503 Demo Board is a four layer board with two internal ground planes. The layout of the top
and bottom layers is shown in the following figures.
Figure 4. Top Layer
8
AN-2264 LMR70503 Demo Board SNVU155A–June 2012–Revised April 2013
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