Low Power-Loss Voltage Regulators
PQ05RD21 Series/PQ3RD23
Fig. 5 Overcurrent Protection
Fig. 6 Overcurrent Protection
Characteristics (Typical Value) (PQ05RD21)
Characteristics (Typical Value) (PQ09RD21)
12
11
10
9
12
11
10
9
Vi-O=2V
8
7
8
7
Vi-O=3V
6
5
4
3
2
1
6
5
4
3
2
1
Vi-O=2V
V
i
-
O
=3V
=1V
Vi
-O
=1V
Vi-O
Vi-O
=0.5V
V
i
-
O
=0.5V
4.0
0
1.0
2.0
3.0
4.0
0
1.0
2.0
3.0
(A)
Output current I
O
(A)
Output current I
O
Fig. 7 Overcurrent Protection
Fig. 8 Output Voltage Deviation vs. Junction
Characteristics (Typical Value) (PQ12RD21)
Temperature (PQ3RD23)
12
11
10
9
150
VIN =5V
V
i
i
-
O
O
=2V
=3V
IO =0.5A
V
-
100
8
7
6
5
4
50
0
Vi
-O
=1V
3
2
Vi-O
=0.5V
–50
1
–
100
–25
0
25
50
75
100 125
0
1.0
2.0
3.0
4.0
Junction temperature Tj (˚C)
Output current I
O
(A)
Fig. 9 Output Voltage Deviation vs. Junction
Temperature (PQ05RD21)
Fig.10 Output Voltage Deviation vs. Junction
Temperature (PQ09RD21)
150
250
VIN= 7V
VIN=11V
150
IO =0.5A
IO=0.5A
100
100
50
0
50
0
–50
–50
–100
–150
–
100
–25
0
25
50
75
100 125
–25
0
25
50
75
100 125
Junction temperature Tj (˚C)
Junction temperature Tj (˚C)
SHARP [ SHARP ELECTRIONIC COMPONENTS ]
