PD - 95867A
IRF6691
HEXFET® Power MOSFET plus Schottky Diode
l Application Specific MOSFETs
l Integrates Monolithic Trench Schottky Diode
l Ideal for CPU Core DC-DC Converters
l Low Conduction Losses
VDSS
20V
RDS(on) max
Qg(typ.)
Ω
2.5m @VGS = 4.5V
47nC
Ω
1.8m @VGS = 10V
l Low Reverse Recovery Losses
l Low Switching Losses
l Low Reverse Recovery Charge and Low Vf
l Low Profile (<0.7 mm)
l Dual Sided Cooling Compatible
l Compatible with existing Surface Mount Techniques
DirectFET ISOMETRIC
MT
Applicable DirectFET Package/Layout Pad (see p.8,9 for details)
MT
SQ
SX
ST
MQ
MX
Description
The IRF6691 combines IRs industry leading DirectFET package technology with the latest monolithic die technology,
which integrates MOSFET plus free-wheeling Schottky diode. 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 noteAN-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 IRF6691 is characterized with reduced on resistance (RDS(on)), reverse recovery charge (Qrr) and source to drain
voltage (VSD) to reduce conduction, reverse recovery and deadtime losses. These reduced total losses along with high
Cdv/dt immunity make this product ideal for high efficiency DC-DC converters that power the latest generation of proces-
sors operating at higher frequencies. The IRF6691 has been optimized for parameters that are critical for synchronous
MOSFET sockets operating in 12 volt buss converters.
Absolute Maximum Ratings
Parameter
Max.
Units
VDS
Drain-to-Source Voltage
20
±12
V
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
@ TC = 25°C
180
D
D
D
@ TA = 25°C
@ TA = 70°C
32
A
26
260
DM
Power Dissipation
P
P
P
@TA = 25°C
@TA = 70°C
@TC = 25°C
2.8
D
D
D
Power Dissipation
1.8
W
Power Dissipation
89
Linear Derating Factor
0.022
-40 to + 150
W/°C
°C
Operating Junction and
T
J
Storage Temperature Range
T
STG
Thermal Resistance
Parameter
Typ.
–––
12.5
20
Max.
45
Units
Rθ
Rθ
Rθ
Rθ
Rθ
Junction-to-Ambient
JA
Junction-to-Ambient
Junction-to-Ambient
Junction-to-Case
–––
–––
1.4
JA
°C/W
JA
–––
1.0
JC
Junction-to-PCB Mounted
–––
J-PCB
Notes through are on page 10
www.irf.com
1
11/3/04