Diodes AP3583/A - Manual (Page 6)

Data Sheet
Single Phase Synchronous Buck PWM Controller With Reference Input AP3583/A
Dec. 2011 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
6
Electrical Characteristics (Continued)
V
CC
=12V, T
A
=25℃, unless otherwise specified.
Parameter Symbol Conditions Min Typ Max Unit
│V
FB
-V
REFIN
│, 1 V
REFIN
=0.4V to 1.0V,
Tracking Mode 15 mV
Output Voltage Accuracy
│V
FB
-V
REFIN
│/V
REFIN
,
V
REFIN
=1.0V to 3.0V,
Tracking Mode
1.5 %
REFIN Enable Threshold V
REFIN
0.3 0.35 V
PROTECTION
Under Voltage Protection
V
FB_UVP
0.3 0.4 0.5 V
Over Current Source I
OPS
30 40 50 µA
AP3583, 1 Stand-alone
Mode
2.6
Soft-start Interval t
SS
AP3583A, 1 Stand-alone
Mode
2.0
ms
Thermal Shutdown T
OTSD
160 ºC
Thermal Shutdown Hysteresis T
HYS
20 ºC
Typical Performance Characteristics
Figure 4. Line Regulation Figure 5. Load Regulation
4 5 6 7 8 9 10 11 12 13 14
-0.3
-0.2
-0.1
0.0
0.1
0.2
0.3
0.4
V
OUT
=1.2V, I
OUT
=10A
O
u
tput
Vol
tag
e V
a
ri
at
ion
(
%
)
Input Voltage (V)
0 2 4 6 8 10 12 14 16 18 20 22
-4.0
-3.5
-3.0
-2.5
-2.0
-1.5
-1.0
-0.5
0.0
0.5
1.0
V
IN
=12V, V
OUT
=1.2V O
u
tput Voltage Variation
(%)
Output Current (A)