Diodes AP3427M - Manual (Page 4)

Preliminary Datasheet
Dual 1A, 1.5MH
Z
Synchronous Step-down DC-DC Converter AP3427M
Mar. 2013 Rev. 1.0 BCD Semiconductor Manufacturing Limited
4
Absolute Maximum Ratings (Note 1)
Parameter Symbol Value Unit
Supply Input Voltage for the
MOSFET Switch
V
IN1
, V
IN2
0 to 6.5 V
LX Pin Switch Voltage V
LX1
, V
LX2
-0.3 to V
IN
+0.3 V
Enable Input Voltage V
EN1
, V
EN2
-0.3 to V
IN
+0.3 V
LX Pin Switch Current I
LX1
, I
LX2
1.8 A
Power Dissipation (on PCB,
T
A
=25°C)
P
D
2.44 W
Thermal Resistance (Junction to
Ambient, Simulation)
θ
JA
41
°C/W
Thermal Resistance (Junction to
Case, Simulation)
θ
JC
4.2
°C/W
Operating Junction Temperature T
J
155
°C
Operating Temperature T
OP
-40 to 85
°C
Storage Temperature Range T
STG
-55 to 150
°C
ESD (Human Body Model) V
HBM
2000 V
ESD (Machine Model) V
MM
200 V
Note 1: Stresses greater than those listed under “Absolute Maximum Ratings” may cause permanent damage to
the device. These are stress ratings only, and functional operation of the device at these or any other conditions
beyond those indicated under “Recommended Operating Conditions” is not implied. Exposure to “Absolute
Maximum Ratings” for extended periods may affect device reliability.
Recommended Operating Conditions
Parameter Symbol Min Max Unit
Supply Input Voltage V
IN
2.5 5.5 V
Operating Junction Temperature T
J
-40 125
°C
Ambient Temperature T
A
-40 80
°C