Datasheet

20 s/DIV
2V/DIV
VOUT
2V/DIV
VSW
2V/DIV
EN
40 s/DIV
2V/DIV
VOUT
2V/DIV
VSW
1A/DIV
Inductor
Current
LM3243
SNVS782B –OCTOBER 2010–REVISED FEBRUARY 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Startup in PWM Mode Timed-Current Limit
V
IN
= 4.2V, V
OUT
= 3.4V, No Load, EN = LOW to HIGH V
IN
= 4.2V, V
OUT
= 2.5V, R
LOAD
= 6.8Ω to V
OUT
Shorted
Figure 19. Figure 20.
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