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IRF6706S2TRPBF Datasheet, PDF (1/10 Pages) International Rectifier – DirectFET Power MOSFET
l RoHS Compliant and Halogen Free 
l Low Profile (<0.7 mm)
l Dual Sided Cooling Compatible 
l Ultra Low Package Inductance
l Optimized for High Frequency Switching 
l Ideal for CPU Core DC-DC Converters
l Optimized for Control FET Application
l Compatible with existing Surface Mount Techniques 
l 100% Rg tested
PD - 97485
IRF6706S2TRPbF
IRF6706S2TR1PbF
DirectFET™ Power MOSFET ‚
Typical values (unless otherwise specified)
VDSS
VGS
RDS(on)
RDS(on)
25V max ±20V max 3.0mΩ@10V 5.2mΩ@4.5V
Qg tot Qgd
13nC 4.4nC
Qgs2
1.8nC
Qrr
21nC
Qoss Vgs(th)
9.5nC 1.8V
D
GS
D
Applicable DirectFET Outline and Substrate Outline 
S1
S2
SB
M2
M4
S1
L4
DirectFET™ ISOMETRIC
L6
L8
Description
The IRF6706S2TRPbF combines the latest HEXFET® Power MOSFET Silicon technology with the advanced DirectFETTM packaging to
achieve improved performance in a package that has the footprint of a MICRO-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 pack-
age allows dual sided cooling to maximize thermal transfer in power systems, improving previous best thermal resistance by 80%.
The IRF6706S2TRPbF has low gate resistance and low charge along with ultra low package inductance providing significant reduction in
switching losses. The reduced losses make this product ideal for high efficiency DC-DC converters that power the latest generation of
processors operating at higher frequencies. The IRF6706S2TRPbF has been optimized for the control FET socket of synchronous buck
operating from 12 volt bus converters.
Absolute Maximum Ratings
Parameter
VDS
Drain-to-Source Voltage
VGS
ID @ TA = 25°C
ID @ TA = 70°C
ID @ TC = 25°C
IDM
EAS
IAR
Gate-to-Source Voltage
e Continuous Drain Current, VGS @ 10V
e Continuous Drain Current, VGS @ 10V
f Continuous Drain Current, VGS @ 10V
g Pulsed Drain Current
h Single Pulse Avalanche Energy
Ãg Avalanche Current
Max.
25
±20
17
13
63
130
42
13
Units
V
A
mJ
A
15
14.0
ID = 17A
12.0 ID= 13A
10
10.0
VDS= 20V
VDS= 13V
8.0
TJ = 125°C
6.0
5
4.0
TJ = 25°C
0
0 2 4 6 8 10 12 14 16 18 20
2.0
0.0
0
10
20
30
VGS, Gate -to -Source Voltage (V)
Fig 1. Typical On-Resistance vs. Gate Voltage
Notes:
 Click on this section to link to the appropriate technical paper.
‚ Click on this section to link to the DirectFET Website.
ƒ Surface mounted on 1 in. square Cu board, steady state.
www.irf.com
QG Total Gate Charge (nC)
Fig 2. Typical Total Gate Charge vs Gate-to-Source Voltage
„ TC measured with thermocouple mounted to top (Drain) of part.
… Repetitive rating; pulse width limited by max. junction temperature.
† Starting TJ = 25°C, L = 0.50mH, RG = 25Ω, IAS = 13A.
1
03/31/2010