Low Power-Loss Voltage Regulators
Fig.3 Power Dissipation vs. Ambient
Temperature
20
P
D1
:No heat sink
P
D2
:With infinite heat sink
Power dissipation P
D
(W)
PQ05RG1/PQ05RG11 Series
Fig.4 Overcurren Protection Characteristics
(Typical Value)
150
T
j
=25˚C
Relative output voltage (%)
15
P
D2
V
IN
-V
O
=0.5,1,2,3,5,7,10V
100
10
50
5
P
D1
0
50
100
150
Ambient temperature T
a
(˚C)
Note) Oblique line portion : Overheat protection may operate
in this area.
0
-20
0
0
0.5
1.0
1.5
Output current I
O
(A)
2.0
Fig.5 Overcurrent Protection
Characteristics (Typical Value)
150
V
IN
-V
O
=2V
Relative output voltage (%)
Fig.6 Output Voltage Deviation vs. Junction
Temperature (PQ05RG1/11)
+50
Output voltage deviation
∆V
O
(mV)
V
IN
=7V
I
O
=5mA
T
j
=125,100,75,50,25,0,-20˚C
100
0
50
0
0
0.5
1.0
1.5
Output current I
O
(A)
2.0
-50
-20
0
25
50
75
100
Junction temperature T
j
(˚C)
125
Fig.7 Output Voltage Deviation vs. Junction
Temperature (PQ09RG1/11)
+100
Output voltage deviation
∆V
O
(mV)
Fig.8 Output Voltage Deviation vs. Junction
Temperature (PQ12RG1/11)
Output voltage deviation
∆V
O
(mV)
V
IN
=11V
I
O
=5mA
+100 V
IN
=14V
I
O
=5mA
0
0
-100
-20
0
25
50
75
100
Junction temperature T
j
(˚C)
125
-100
-20
0
25
50
75
100
Junction temperature T
j
(˚C)
125
SHARP [ SHARP ELECTRIONIC COMPONENTS ]
