IRF8308MPbF
DirectFET Power MOSFET
l RoHs Compliant Containing No Lead and Bromide
l Low Profile (<0.7 mm)
Typical values (unless otherwise specified)
VDSS
VGS
RDS(on)
RDS(on)
l Dual Sided Cooling Compatible
l Ultra Low Package Inductance
30V max ±20V max
1.9mΩ@ 10V 2.7mΩ@ 4.5V
Qg tot Qgd
Qgs2
Qrr
Qoss Vgs(th)
l Optimized for High Frequency Switching
l Ideal for CPU Core DC-DC Converters
28nC
8.2nC 3.5nC
34nC
20nC
1.8V
l Optimized for Sync. FET socket of Sync. Buck Converter
l Low Conduction and Switching Losses
l Compatible with existing Surface Mount Techniques
l 100% Rg tested
DirectFET ISOMETRIC
MX
MP
Applicable DirectFET Outline and Substrate Outline (see p.7,8 for details)
SQ
SX
ST
MQ
MT
MX
Description
The IRF8308MPbF combines the latest HEXFET® Power MOSFET Silicon technology with the advanced DirectFETTM packaging to achieve the lowest on-
state resistance in a package that has the footprint of a SO-8 and only 0.7 mm profile. The DirectFET package is compatible with existing layout geometries
used in power applications, PCB assembly equipment and vapor phase, infra-red or convection soldering techniques, when application note AN-1035 is
followed regarding the manufacturing methods and processes. The DirectFET package allows dual sided cooling to maximize thermal transfer in power
systems, improving previous best thermal resistance by 80%.
The IRF8308MPbF balances both low resistance and low charge along with ultra low package inductance to reduce both conduction and switching losses.
The reduced total losses make this product ideal for high efficiency DC-DC converters that power the latest generation of processors operating at higher
frequencies. The IRF8308MPbF has been optimized for parameters that are critical in synchronous buck including Rds(on), gate charge and Cdv/dt-
induced turn on immunity. The IRF8308MPbF offers particularly low Rds(on) and high Cdv/dt immunity for synchronous FET applications.
Standard Pack
Orderable part number
Package Type
Note
Form
Quantity
4800
IRF8308MTRPbF
IRF8308MTR1PbF
DirectFET Medium Can
DirectFET Medium Can
Tape and Reel
Tape and Reel
"TR" suffix
"TR1" suffix EOL notice # 264
1000
Absolute Maximum Ratings
Max.
Parameter
Drain-to-Source Voltage
Units
V
VDS
30
±20
27
Gate-to-Source Voltage
V
GS
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Continuous Drain Current, VGS @ 10V
Pulsed Drain Current
I
I
I
I
@ TA = 25°C
D
D
D
21
A
@ TA = 70°C
@ TC = 25°C
150
212
12
DM
EAS
IAR
Single Pulse Avalanche Energy
Avalanche Current
mJ
A
21
12
8
6
4
2
0
I = 21A
V
= 24V
I
= 27A
D
DS
VDS= 15V
D
10
8
6
T
= 125°C
= 25°C
J
4
T
J
2
0
2.0
4.0
6.0
8.0
10.0
0
20
40
60
80
V
, Gate-to-Source Voltage (V)
GS
Q
Total Gate Charge (nC)
G
Fig 1. Typical On-Resistance Vs. Gate Voltage
Fig 2. Typical Total Gate Charge vs Gate-to-Source Voltage
Notes:
TC measured with thermocouple mounted to top (Drain) of part.
ꢀ Repetitive rating; pulse width limited by max. junction temperature.
Starting TJ = 25°C, L = 0.051mH, RG = 25Ω, IAS = 21A.
Click on this section to link to the appropriate technical paper.
Click on this section to link to the DirectFET Website.
Surface mounted on 1 in. square Cu board, steady state.
1
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February 24, 2014