Diodes AP3433 - Manual (Page 9)

Preliminary Datasheet
3A, 2MHz High Performance Synchronous Buck Converter AP3433
Jul. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
9
Typical Performance Characteristics (Continued)
Time 4ms/div Time 20 µs/div
Time 200 µs/div Time 400ns/div
V
OUT(AC)
200mV/div
Figure 14. Load Transient Response Figure 15. Synchronizing to External Clock
(V
IN
=5V, V
OUT
=1.8V, I
OUT
=0 to 3A) (f
CLOCK
=2MHz)
I
OUT
2A/div
V
CLOCK
2V/div
V
SW
2V/div
V
OUT
1V/div
V
IN
2V/div
I
L
2A/div
V
SS
2V/div
Figure 12. Start up from V
IN
(V
IN
=5V, V
OUT
=1.8V, I
OUT
=3A) Figure 13. Disable IC (V
IN
=5V, V
OUT
=1.8V, I
OUT
=3A)
V
EN
2V/div
V
OUT
1V/div
V
SS
2V/div
I
L
2A/div