Owner manual

AP3418
Document number: DS37233 Rev. 2 - 2
4 of 11
www.diodes.com
April 2014
© Diodes Incorporated
AP3418
A Product Line of
Diodes Incorporated
Electrical Characteristics (V
IN
= 5V, T
A
= +25ºC, unless otherwise specified.)
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
V
IN
Input Voltage
2.5
5.5
V
I
Q
Quiescent Current
V
FB
= 0.65V
62
100
µA
I
STBY
Shutdown Supply Current
V
EN
= GND
0.1
1
µA
V
REF
Reference Voltage
For Adjustable Output
Voltage
0.588
0.6
0.612
V
I
FB_H
Feedback Bias Current
V
FB
= 1V
-0.1
0.1
µA
I
FB_L
V
FB
= 0V
-0.1
0.1
R
DS(ON)_ P
PMOSFET R
ON
I
SW
= 200mA
0.2
R
DS(ON) _N
NMOSFET R
ON
I
SW
= -200mA
0.15
I
LIM
Switch Current Limit
V
FB
= 0.55V
1.8
2.3
A
V
H
EN Pin Threshold
1.5
V
V
L
0.4
V
UVLO
UVLO Threshold
V
IN
Rising
2.3
V
V
HYS
UVLO Hysteresis
0.2
f
OSC
Oscillator Frequency
1.12
1.40
1.68
MHz
D
MAX
Max. Duty Cycle
100
%
D
MIN
Min. Duty Cycle
0
I
SW_H
SW Leakage Current
V
SW
= 0V
0.1
µA
I
SW_L
V
SW
= 5V
0.1
t
SS
Soft-start Time
1
ms
T
OTSD
Thermal Shutdown
+160
ºC
T
HYS
Thermal Shutdown Hysteresis
+20
ºC