PQ7DV5 Datasheet, PDF (3/4 Pages) Sharp Electrionic Components – Variable Output Type, High Output Current (5A) Type Low Power-loss Voltage Regulators

Low Power-Loss Voltage Regulators
Fig.5 Reference Voltage Deviation vs.
Junction Temperature
10
VIN=5V
8 _{VO=3V(R1=2kΩ,R2=2.8kΩ)}
6 ^IO=2.5A
4
2
0
-2
-4
-6
-8
-10
-25
0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig.7 Circuit Operating Current vs. Input
Voltage
Ta =25˚C
VO=3V
(R1=2kΩ,
R2=2.8kΩ)
100
RL=0.6Ω
RL=1.2Ω
RL=∞
0
0
1
2
3
4
5
Input voltage VIN (V)
Fig.9 Quiescent Current vs. Junction
Temperature
20
VIN =5V
18 _{VO=3V(R1=2kΩ,R2=2.8kΩ)}
16 IO =0A
14
12
10
8
6
4
2
0
-25 0 25 50 75 100 125
Junction temperature Tj (˚C)
PQ7DV5
Fig.6 Output Voltage vs. Input Voltage
4
Ta =25˚C
VO=3V(R1=2kΩ,R2=2.8kΩ)
3
RL=1.2Ω
RL=∞
RL=0.6Ω
2
1
0
0
1
2
3
4
5
Input voltage VIN (V)
Fig.8 Dropout Voltage vs. Junction
Temperature
0.5
VIN :0.95VO
VO=3V(R1=2kΩ,R2=2.8kΩ)
0.4
IO=5A
0.3
0.2
0.1
0
-25 0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig.10 Ripple Rejection vs. Input Ripple
Frequency
100
80
60
40
VIN=5V
20 _{VO=3V(R1=2kΩ,R2=2.8kΩ)}
Io=0.5A,ei=0.5Vrms,
0 ^{Ta =25˚C}
0.1
1
10
100
Input ripple frequency f (kHz)