Preliminary datasheet, Electrical characteristics (continued), Parameter symbol conditions min typ max unit – Diodes AP3512E User Manual
Page 6: I- i v - v
Preliminary Datasheet
18V, 2A Synchronous DC-DC Buck Converter AP3512E
Dec. 2012 Rev. 1. 1 BCD Semiconductor Manufacturing Limited
6
Electrical Characteristics (Continued)
V
IN
=V
EN
=12V, V
OUT
=3.3V, T
A
=25ºC, unless otherwise specified.
Parameter Symbol
Conditions
Min
Typ
Max
Unit
Max. Duty Cycle
D
MAX
V
FB
=0.85V
90
%
Min. Duty Cycle
D
MIN
V
FB
=1V
0
%
ERROR AMPLIFIER
Error Amplifier Voltage Gain
(Note 2)
A
EA
400
V/V
Error Amplifier Transconductance G
EA
800
μA/V
COMP to Current Sense
Transconductance
G
CS
5.2
A/V
THERMAL SHUTDOWN
Thermal Shutdown (Note 2)
T
OTSD
160
ºC
Thermal Shutdown Hysteresis
(Note 2)
T
HYS
30
ºC
SOFT START (SS PIN)
Soft-start Time (Note 2)
t
SS
C
SS
=0.1μF
15
ms
Soft-start Current
5
μA
Note 2: Not tested, guaranteed by design.
Note 3: R
DSON
=
SW2
SW1
SW2
SW1
I
-
I
V
-
V