Diodes AP3503E - Manual (Page 8)

Preliminary Datasheet
340kHz, 3A Synchronous DC-DC Buck Converter AP3503E
May. 2012 Rev. 1. 6 BCD Semiconductor Manufacturing Limited
8
Typical Performance Characteristics (Continued)
T
A
=25ºC, V
IN
=12V, V
OUT
=3.3V, unless otherwise noted.
Figure 12. Enable Turn-on Characteristic Figure 13. Enable Turn-off Characteristic
(V
IN
=12V, V
EN
=3.3V, V
OUT
=3.3V, I
OUT
=3A) (V
IN
=12V, V
EN
=3.3V, V
OUT
=3.3V, I
OUT
=3A)
Figure 14. Short Circuit Protection (I
OUT
=3A) Figure 15. Short Circuit Recovery (I
OUT
=3A)
Time 200
µs/div
Time 10ms/div
V
OUT
2V/div
I
L
2A/div
V
SS
2V/div
V
EN
2V/div
V
OUT
2V/div
I
L
2A/div
V
SS
2V/div
V
EN
2V/div
Time 100ms/div Time 100ms/div
V
OUT
2V/div
I
L
2A/div
V
SW
10V/div
V
OUT
2V/div
I
L
2A/div
V
SW
10V/div
V
SS
1V/div
V
SS
1V/div