AO3438 Datasheet, PDF (1/4 Pages) Alpha & Omega Semiconductors – N-Channel Enhancement Mode Field Effect Transistor

AO3438
20V N-Channel MOSFET
General Description
The AO3438 uses advanced trench technology to provide excellent RDS(ON) ^{, low gate charge and}
operation with gate voltages as low as 1.8V. This device is suitable for use as a load switch or in PWM
applications.
Features
V_DS = 20V
I_D = 3A
R_DS(ON) < 62mΩ
R_DS(ON) < 70mΩ
R_DS(ON) < 85mΩ
(V_GS = 4.5V)
(V_GS = 4.5V)
(V_GS = 2.5V)
(V_GS = 1.8V)
D
G
S
Absolute Maximum Ratings T_A=25°C unless otherwise noted
Parameter
Symbol
Drain-Source Voltage
V_DS
Gate-Source Voltage
V_GS
Continuous Drain ^TA^=25°C
Current ^A
T_A=70°C
I_D
Pulsed Drain Current ^B
I_DM
T_A=25°C
Power Dissipation ^A T_A=70°C
P_D
Junction and Storage Temperature Range T_J, T_STG
Maximum
20
±8
3
2.5
16
1.4
0.9
-55 to 150
Thermal Characteristics
Parameter
Symbol
Typ
Max
Maximum Junction-to-Ambient ^A
Maximum Junction-to-Ambient ^A
t ≤ 10s
Steady-State
R_θJA
70
100
90
125
Maximum Junction-to-Lead ^C
Steady-State
R_θJL
63
80
Units
V
V
A
W
°C
Units
°C/W
°C/W
°C/W
1/4
www.freescale.net.cn