pq7vz5 Sharp Microelectronics of the Americas, pq7vz5 Datasheet - Page 4

• Manufacturer Part Number: pq7vz5
• Description: Variable Output, Compact Surface Mount Type Power-loss Voltage Regulators
• Manufacturer: Sharp Microelectronics of the Americas

Low Power-Loss Voltage Regulators
Fig.11 Quiescent Current vs. Junction
Fig.13 Output Peak Current vs. Junction
Fig.14 Power Dissipation vs. Ambient
2.0
1.5
1.0
0.5
5
4
3
2
1
0
0
-25
3
2
1
0
-25
-20
Temperature(Typical Value)
Temperature(Typical Value)
Temperature(Typical Value)
V
V
I
Cu area 740mm
Cu area 180mm
O
Cu area 36mm
I
IN
O
OP
=0.3A
=3V(R
output voltage is 95%
in comparison with
the initial value
=5V
Cu area 100mm
Junction temperature T
:Output current when
Junction temperature T
Cu area 70mm
Ambient temperature T
0
0
0
1
=1k ,R
25
25
20
V
IN
2
V
V
-
2
2
V
50
50
IN
O
2
40
2V
0.5V
1V
O
=1.4k )
=3V(R
=5V
2
2
=5V
75
1
75
60
=1k ,R
j
j
a
(˚C)
(˚C)
100
(˚C)
100
2
80
=1.4k )
125
125
100
Fig.12 Ripple Rejection vs. Input Ripple
PWB
Material
Size
Cu thickness : 35 m
70
60
50
40
30
20
10
0
0.1
Frequency
V
V
Io=0.3A
e
i
=0.5V
: Glass-cloth epoxy resin
: 50X50X1.6mm
IN
O
=3V(R
=5V
Input ripple frequency f (kHz)
PWB
Cu
rms
1
=1k ,R
1
3
2
=1.4k )
10
PQ7VZ5
100