Diodes AP3581A/B/C - Manual (Page 8)

Data Sheet
Single Phase Synchronous Buck PWM Controller AP3581A/B/C
Oct. 2011 Rev. 1. 0 BCD Semiconductor Manufacturing Limited
8
Typical Performance Characteristics (Continued)
Figure 10. Power-on Waveform Figure 11. Power-off Waveform
(V
IN
=12V, V
OUT
=1.2V, I
OUT
=0A) (V
IN
=12V, V
OUT
=1.2V, I
OUT
=20A)
Figure 12. Enable Waveform Figure 13. Disable Waveform
(V
IN
=12V, V
OUT
=1.2V, I
OUT
=0A) (V
IN
=12V, V
OUT
=1.2V, I
OUT
=20A)
V
IN
10V/div
V
OUT
0.5V/div
V
COMP
0.5V/div
V
LGATE
10V/div
Time 1ms/div
V
IN
10V/div
V
OUT
0.5V/div
V
PHASE
10V/div
I
L
10A/div
Time 200 µs/div
V
IN
10V/div
V
OUT
0.5V/div
V
COMP
0.5V/div
Time 1ms/div
V
PHASE
10V/div
V
OUT
0.5V/div
V
COMP
0.5V/div
I
L
10A/div
Time 20 µs/div
I
L
10A/div