Low Power-Loss Voltage Regulators
Fig.4 Power Dissipation vs. Ambient
Temperature
20
PD1 :No heat sink
PD2 :With infinite heat sink
15
PD2
10
5
PD1
0
-20 0 20 40 60 80 100
Ambient temperature Ta (˚C)
Note) Oblique line portion:Overheat protection may operate
in this area.
Fig.6 Output Voltage vs. Input Voltage
(PQ09NF1) (Typical value)
10
Tj=25˚C
VB=12V
RL=∞
RL=9Ω
RL=18Ω
5
PQ05NF1 Series
Fig.5 Output Voltage vs. Input Voltage
(PQ05NF1) (Typical value)
6
VB=8V
5 Tj=25˚C
4
RL=∞
RL=10Ω
RL=5Ω
3
2
1
0
012 34 56
Input voltage VIN (V)
Fig.7 Output Voltage vs. Input Voltage
(PQ12NF1) (Typical value)
VB=15V
Tj=25˚C
RL=∞
10
RL=12Ω
RL=24Ω
5
0
01 2 34 5
10
15
Input voltage VIN (V)
Fig.8 Output Voltage vs. Bias Supply
Voltage (PQ05NF1) (Typical value)
6
VIN=7V
5 Tj=25˚C
RL=∞
4
RL=5Ω
RL=10Ω
3
2
1
0
01234 5678
Bias supply voltage VB (V)
0
0
5
10
15
Input voltage VIN (V)
Fig.9 Output Voltage vs. Bias Supply
Voltage (PQ09NF1) (Typical value)
10
VIN=11V
Tj=25˚C
RL=∞
5
RL=9Ω,18Ω
0
0
5
10
Bias supply voltage VB (V)