Diodes AP1533 - Manual (Page 6)

AP1533
PWM CONTROL 1.8A STEP-DOWN CONVERTER
AP1533 Rev. 4 6 of 9 JULY 2009
DS31192 www.diodes.com © Diodes Incorporated
Typical Performance Characteristics
(Continued)
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
= 1.8A )
Test Circuit
A
FB V
CC
V
SS
EN
open
open
FB
EN
+
-
Os
ci
lla
tio
n
OUTPUT OUTPUT
A
FB
EN
+
-
+
-
V
OUTPUT
OCSET
OCSET
OCSET
Enable function test Feedback function test
Operation function test
V
CC
V
CC
V
SS
V
SS