SI2318
LOW VOLTAGE MOSFET (N-CHANNEL)
FEATURES
VDS=40V,RDS(ON)≤45mΩ@VGS=10V,ID=3.9A
Ultra Low on-resistance
For Low power DC to DC converter application
For Load switch application
Surface Mount device
SOT-23 (Marking: S18)
MECHANICAL DATA
Case: SOT-23
Case Material: Molded Plastic. UL flammability
Classification Rating: 94V-0
Weight: 0.008 grams (approximate)
MAXIMUM RATINGS (TA = 25°C unless otherwise noted)
Parameter
Drain-source voltage
Symbol
Value
40
Unit
V
V
DS
Gate-source voltage
VGS
ID
±20
V
Continuous drain current
TA=25°C
TA=70°C
3.9
A
ID
3.1
A
Pulsed drain current (Note 1)
IDM
IS
16
A
Continuous Source Current (Diode Conduction)
Power dissipation
0.8
A
PD
RθJA
TJ
1.25
100
W
Thermal resistance from Junction to ambient
Junction temperature
°C/W
°C
°C
150
Storage temperature
TSTG
-55 ~+150
ELECTRICAL CHARACTERISTICS (TA = 25°C unless otherwise specified)
Parameter
Symbol Min Typ Max Unit
Conditions
VGS=0V, ID=250μA
V(BR)DSS
Drain-Source breakdown voltage
Zero gate voltage drain current
Gate-body leakage current
Gate-threshold voltage (note 1)
On-State Drain Current
40
V
μA VDS=32V,
IDSS
1
VGS=0V
IGSS
±100 nA VDS=0V,
VGS=±20V
VGS(th)
ID(ON)
1
6
3
V
A
VDS=VGS, ID=250μA
≥4.5V,
VDS
GS=10V, ID=3.9A
VGS=10V
36
50
11
540
80
45
5
12
20
15
10
1.6
2.1
0.8
45
62.5
V
mΩ
mΩ
S
Drain-source on-resistance (note 1)
RDS(ON)
VGS=4.5V, ID=3.5A
VDS=10V, ID=3.9A
Forward transconductance (note 1)
Input capacitance
Output capacitance
Reverse transfer capacitance
Turn-on delay time
Turn-on rise time
Turn-off delay time
Turn-off fall time
Total gate charge
Gate-source charge
gFS
Ciss
Coss
Crss
td(on)
tr
td(off)
tf
Qg
pF
pF
pF
nS
nS
nS
nS
nC
VDS=20V, VGS=0V, f=1MHz
VDS=20V, VGEN=10V,
RL=20Ω, ID=1A,RG=6Ω
Qgs
Qgd
VSD
nC VDS=20V,VGS=10V,ID=3.9A
nC
V
Gate-drain charge
Diode forward voltage (note 1)
IS=1.25A, VGS=0V
1.2
Note:1. Pulse test: Pulse width ≤300µs, Duty cycle ≤ 2% .
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