Diodes AP1539 - Manual (Page 7)

AP1539
18V 4A 300KHz BUCK CONVERTER
AP1539 Rev. 4 7 of 13 OCTOBER 2009
DS31477 www.diodes.com © Diodes Incorporated
Typical Performance Characteristics
(Continued)
Current Limit vs. Temperature
(V
IN
= 12V, R
OCSET
= 6.8k)
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
8.0
8.5
9.0
-25 0 25 50 75 100
Ambient Temperature (C)
C
u
rre
n
t L
im
it (A
)
V
OUT
Ripple
(V
IN
=12V, V
OUT
=3.3V, I
OUT
=0.1A)
V
OUT
Ripple
(V
IN
=12V, V
OUT
=3.3V, I
OUT
=4.0A)
Load Transient Response
(V
IN
=12V, V
OUT
=3.3V, I
OUT
=0.1~4A)