XRP7714 Exar, XRP7714 Datasheet - Page 8

• Manufacturer Part Number: XRP7714
• Description: Quad Channel Digital PWM Step Down Controller
• Manufacturer: Exar

TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at T
this datasheet.
© 2010 Exar Corporation
FET: FDS8984; Inductor: 744310200 7x7x3mm
FET: Si4944; Inductor: 744314xxx 7x7x5mm
FET: Si4944; Inductor: 744314xxx 7x7x5mm
300kHz - Channels not in use are disabled
300kHz - Channels not in use are disabled
Fig. 4: 12Vin Efficiency: Single Channel
100%
Fig. 6: 5Vin Efficiency: Single Channel
90%
80%
70%
60%
50%
100%
5V & 3V3 1V8 & 1V@ 5A - 300 kHz
90%
80%
70%
60%
50%
Fig. 8: 12Vin Combined Efficiency
0
0
J
= T
1
A
Output Current (Amps)
1
= 25°C, unless otherwise specified - Schematic and BOM from Application Information section of
2
Output Current Amps
3
2
4
3
Q
Q
u
u
5
a
a
2.5V
1.8V
1.2V
1.0V
d
d
4
C
C
h
h
a
a
n
n
8/27
n
n
e
e
l
l
D
D
FET: FDS8984; Inductor: 744310200 7x7x3mm
FET: FDS8984; Inductor: 744310200 7x7x3mm
FET: FDS8984; Inductor:744310200 7x7x3mm
i
i
g
g
300kHz - Channels not in use are disabled
300kHz - Channels not in use are disabled
i
i
1MHz - Channels not in use are disabled
Fig. 5: 12Vin Efficiency: Single Channel
Fig. 9: 12Vin Efficiency: Single Channel
t
t
Fig. 7: 5Vin Efficiency: Single Channel
0.9
0.8
0.7
0.6
0.5
0.9
0.8
0.7
0.6
0.5
a
a
1
1
0
0
l
l
P
P
W
W
1
1
M
M
Output Current (Amps)
Output Current (Amps)
S
S
t
t
2
e
e
2
p
p
D
D
3
o
o
3
w
w
n
n
www.DataSheet4U.com
X
X
4
4
C
C
R
R
o
o
3.3V
1.8V
1.2V
1.0 V
P
n
3.3V
2.5V
1.8V
1.0V
P
n
Rev. 1.1.3
t
t
7
7
r
r
o
o
7
7
l
l
1
1
l
l
e
e
4
4
r
r