FDMA7670 Fairchild Semiconductor, FDMA7670 Datasheet - Page 3

• Manufacturer Part Number: FDMA7670
• Description: This device has been designed to provide maximum efficiency and thermal performance for synchronous buck converters
• Manufacturer: Fairchild Semiconductor

©2012 Fairchild Semiconductor Corporation
FDMA7670 Rev.C4
Typical Characteristics
1.6
1.4
1.2
1.0
0.8
0.6
24
20
16
12
24
20
16
12
8
4
0
8
4
0
Figure 3. Normalized On- Resistance
1.0
-75
Figure 1.
0
Figure 5. Transfer Characteristics
PULSE DURATION = 80
DUTY CYCLE = 0.5% MAX
V
V
I
D
GS
DS
-50
= 11 A
1.5
= 5 V
= 10 V
vs Junction Temperature
V
T
V
DS
-25
J
GS
T
,
2.0
0.5
T
J
,
On-Region Characteristics
JUNCTION TEMPERATURE (
, GATE TO SOURCE VOLTAGE (V)
J
= 25
V
DRAIN TO SOURCE VOLTAGE (V)
V
V
V
= 125
GS
GS
GS
GS
0
= 4 V
= 6 V
o
= 10 V
= 4.5 V
2.5
C
o
C
25
μ
s
3.0
1.0
PULSE DURATION = 80
DUTY CYCLE = 0.5% MAX
V
50
GS
T
= 3.5 V
3.5
J
T
= 25°C unless otherwise noted
75
J
= -55
4.0
1.5
o
100 125 150
C )
o
C
4.5
μ
s
2.0
5.0
3
0.01
3.0
2.5
2.0
1.5
1.0
0.5
0.1
10
60
50
40
30
20
10
24
1
0
0.2
0
Figure 2.
2
Figure 4.
Forward Voltage vs Source Current
vs Drain Current and Gate Voltage
Figure 6.
V
GS
V
T
GS
= 0 V
J
V
= 125
SD
= 3.5 V
4
0.4
, BODY DIODE FORWARD VOLTAGE (V)
V
Normalized On-Resistance
GS
I
On-Resistance vs Gate to
D
4
o
,
,
Source Voltage
C
Source to Drain Diode
GATE TO SOURCE VOLTAGE (V)
DRAIN CURRENT (A)
8
0.6
12
PULSE DURATION = 80
DUTY CYCLE = 0.5% MAX
6
V
PULSE DURATION = 80
DUTY CYCLE = 0.5% MAX
GS
T
T
J
= 4 V
J
0.8
= 125
= 25
V
GS
T
16
J
o
o
= -55
= 6 V
C
C
T
J
8
= 25
V
I
1.0
o
D
GS
C
V
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= 11 A
20
GS
= 4.5 V
o
C
= 10 V
μ
s
μ
s
1.2
24
10