![](/html/31/313a/313ab6aad6c303a1640c9037dc11f0eb43beb1afaff48280391fdae788073b89/bg1.png)
DESCRIPTION
ST2305A
P Channel Enhancement Mode MOSFET
-3.5A
ST2305A is the P-Channel logic enhancement mode power field effect transistor which
is produced using high cell density, DMOS trench technology. This high density
process is especially tailored to minimize on-state resistance. These devices are
particularly suited for low voltage application such as cellular phone and notebook
computer power management, other battery powered circuits, and low in-line power
loss are required. The product is in a very small outline surface mount package.
PIN CONFIGURATION
SOT-23-3L
3
D
G
1
1.Gate 2.Source 3.Drain
PART MARKING
SOT-23-3L
S
FEATURE
-20V/-3.5A, R
@VGS = -4.5V
-20V/-3.0A, R
@VGS = -2.5V
-20V/-2.0A, RDS(ON)=80m-ohm
@VGS=-1.8V
Super high density cell design for
extremely low R
Exceptional on-resistance and maximum
DC current capability
SOT-23-3L package design
= 45m-ohm (Typ.)
DS(ON)
= 55m-ohm
DS(ON)
DS(ON)
05YA
1
Y: Year Code A: Process Code
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST2305A 2005. V1
![](/html/31/313a/313ab6aad6c303a1640c9037dc11f0eb43beb1afaff48280391fdae788073b89/bg2.png)
ABSOULTE MAXIMUM RATINGS (Ta = 25℃ Unless otherwise noted )
ST2305A
P Channel Enhancement Mode MOSFET
Parameter Symbol Typical Unit
-3.5A
Drain-Source Voltage V
Gate-Source Voltage V
Continuous Drain CurrentTJ=150℃)
Pulsed Drain Current IDM -10 A
Continuous Source Current (Diode Conduction) IS -1.6 A
Power Dissipation
Operation Junction Temperature TJ 150
Storgae Temperature Range T
Thermal Resistance-Junction to Ambient
TA=25℃
TA=70℃
TA=25℃
TA=70℃
-20 V
DSS
±
GSS
ID
PD
-55/150
STG
θ
R
JA
12
-3.5
-2.8
1.25
0.8
120
W
℃
℃
℃
V
A
/W
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST2305A 2005. V1
![](/html/31/313a/313ab6aad6c303a1640c9037dc11f0eb43beb1afaff48280391fdae788073b89/bg3.png)
ST2305A
P Channel Enhancement Mode MOSFET
ELECTRICAL CHARACTERISTICS ( Ta = 25℃ Unless otherwise noted )
-3.5A
Parameter Symbol
Condition Min Typ Max Unit
Static
Drain-Source Breakdown
Voltage
Gate Threshold Voltage V
Gate Leakage Current I
V
(BR)DSS
GS(th)
GSS
VGS=0V,ID=-250uA -20
VDS=VGS,ID=-250uA -0.3
VDS=0V,VGS=±12V
V
-1.0 V
±
100
VDS=-20V,VGS=0V -1
Zero Gate Voltage Drain
Current
Drain-source On-Resistance R
I
DSS
DS(on)
VDS=-20V,VGS=0V
TJ=55℃
VGS=-4.5V,ID=-3.5A
VGS=-2.5V,ID=-2.0A
VGS=-1.8V,ID=-2.0A
0.045
0.055
0.080
-10
uA
Ω
Forward Transconductance gfs VDS=-5V,ID=-3.5V 8.5 S
Diode Forward Voltage VSD IS=-1.6A,VGS=0V -0.8 -1.2 V
Dynamic
Total Gate Charge Qg
Gate-Source Charge Qgs 2
Gate-Drain Charge Qgd 2
Input Capacitance C
Output Capacitance C
Reverse Transfer
Capacitance
Turn-On Time
iss
90
oss
C
40
rss
t
d(on)
tr
VDS=-10V
VGS=-4.5V
≡
I
-3.5A
D
VDS=-10V
VGS=0V
F=1MHz
VDD=-10V
RL=6Ω
ID=-1.0A
V
=-4.5V
Turn-Off Time
t
d(off)
tf
GEN
RG=6Ω
10 12
485
10 18
13 22
18 24
15 20
nC
pF
nS
STANSON TECHNOLOGY
120 Bentley Square, Mountain View, Ca 94040 USA
www.stansontech.com
ST2305A 2005. V1