Datasheet

V
SW
(2V/Div)
V
OUT
(10 mV/Div)
V
OUT
(10 mV/Div)
www.ti.com Performance Characteristics
Output Ripple Waveform
Figure 4 shows the output voltage ripple. This measurement was taken with the scope probe tip placed on
the output capacitor C9 VOUT connection and the scope probe ground "barrel" wired to the GND
connection of C9. The scope bandwidth is set to 20 MHz.
Figure 4. (2 µs/DIV)
Primary Switchnode Waveform
Figure 5 shows the typical SW pin voltage operating at 12A output current.
Figure 5. (500 ns/DIV)
5
SNVA480A–May 2011–Revised May 2013 AN-2140 LM21212-2 Evaluation Board
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