Diodes AP3583/A - Manual (Page 9)

Data Sheet
Single Phase Synchronous Buck PWM Controller With Reference Input AP3583/A
Dec. 2011 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
9
Typical Performance Characteristics (Continued)
Figure 14. REFIN Operation Figure 15. Power Input Detection
(V
IN
=12V, V
OUT
=1.2V, I
OUT
=5A) (V
IN
=12V, V
OUT
=1.2V, I
OUT
=0A)
Figure 16. UGATE Turn-off Waveforms Figure 17. UGATE Turn-on Waveforms
(V
IN
=12V, V
OUT
=1.2V, I
OUT
=20A) (V
IN
=12V, V
OUT
=1.2V, I
OUT
=20A)
V
REFIN
2V/div
V
LGATE
10V/div
Time 10ms/div
V
LGATE
10V/div
I
L
10A/div
V
UGATE-PHASE
2V/div
V
PHASE
2V/div
V
LGATE
2V/div
Time 40ns/div
V
LGATE
2V/div
V
PHASE
2V/div
V
UGATE-PHASE
2V/div
Time 40ns/div
Time 1ms/div
V
OUT
2V/div
V
OUT
0.5V/div
V
IN
5V/div
V
UGATE
5V/div
V
UGATE
5V/div