Datasheet

LM20145
SNVS530E –OCTOBER 2007–REVISED MARCH 2013 www.ti.com
TYPICAL PERFORMANCE CHARACTERISTICS (continued)
Unless otherwise specified: C
IN
= C
OUT
= 100 µF, L = 1.5 µH (Coilcraft MSS1038), V
IN
= 5V, V
OUT
= 1.2V, R
LOAD
= 1.2Ω,
f
SW
= 500 kHz, T
A
= 25°C for efficiency curves, loop gain plots and waveforms, and T
J
= 25°C for all others.
Line Transient Response Start-Up (Soft-Start)
Figure 19. Figure 20.
Start-Up (Tracking) Power Down
Figure 21. Figure 22.
Short Circuit Input Current P
GOOD
vs. vs.
V
IN
I
PGOOD
Figure 23. Figure 24.
8 Submit Documentation Feedback Copyright © 2007–2013, Texas Instruments Incorporated
Product Folder Links: LM20145