FDS4470
40V N-Channel PowerTrench® MOSFET
General Description
Features
This N-Channel MOSFET has been designed
specifically to improve the overall efficiency of DC/DC
converters using either synchronous or conventional
switching PWM controllers. It has been optimized for
low gate charge, low RDS(ON) and fast switching speed.
• 12.5 A, 40 V. RDS(ON) = 9 mΩ @ VGS = 10 V
• Low gate charge (45 nC)
• High performance trench technology for extremely
Applications
low RDS(ON)
• High power and current handling capability
• DC/DC converter
DD
D
D
D
D
6
Pin 1 SO-8
Absolute Maximum Ratings
Symbol
3
2
8
G
S G
S
S
S S
S
SO-8
4
7
D
D
5
1
TA=25oC unless otherwise noted
Ratings
Units
VDSS
Drain-Source Voltage
Parameter
40
V
VGSS
Gate-Source Voltage
+30/–20
V
ID
Drain Current
12.5
A
– Continuous
(Note 1a)
– Pulsed
50
Power Dissipation for Single Operation
(Note 1a)
2.5
(Note 1b)
PD
1.4
(Note 1c)
TJ, TSTG
Operating and Storage Junction Temperature Range
W
1.2
–55 to +175
°C
Thermal Characteristics
RθJA
Thermal Resistance, Junction-to-Ambient
(Note 1a)
50
°C/W
RθJA
Thermal Resistance, Junction-to-Ambient
(Note 1c)
125
°C/W
RθJC
Thermal Resistance, Junction-to-Case
(Note 1)
25
°C/W
Package Marking and Ordering Information
Device Marking
Device
Reel Size
Tape width
Quantity
FDS4470
FDS4470
13’’
12mm
2500 units
©2006 Fairchild Semiconductor Corporation
FDS4470 Rev D1 (W)
FDS4470
December 2006
Symbol
Parameter
TA = 25°C unless otherwise noted
Test Conditions
Min
Typ
Max Units
Drain–Source Diode Characteristics and Maximum Ratings
IS
trr
Maximum Continuous Drain–Source Diode Forward Current
(Note 2)
Drain–Source Diode Forward
VGS = 0 V, IS = 2.1 A
Voltage
Diode Reverse Recovery Time
IF = 12.5 A, diF/dt = 100 A/µs
Qrr
Diode Reverse Recovery Charge
VSD
0.7
2.1
1.2
A
V
33
nS
39
nC
Notes:
1. RθJA is the sum of the junction-to-case and case-to-ambient thermal resistance where the case thermal reference is defined as the solder mounting surface of
the drain pins. RθJC is guaranteed by design while RθCA is determined by the user's board design.
a) 50°C/W when
2
mounted on a 1in
pad of 2 oz copper
b) 105°C/W when
2
mounted on a .04 in
pad of 2 oz copper
c) 125°C/W when mounted
on a minimum pad.
Scale 1 : 1 on letter size paper
2. Pulse Test: Pulse Width < 300μs, Duty Cycle < 2.0%
FDS4470 Rev D1 (W)
FDS4470
Electrical Characteristics
