Low Power-Loss Voltage Regulators
Fig.15 Dropout Voltage vs. Junction Temperature
(PQ05TZ11/PQ09TZ11/PQ12TZ11)
0.40
IO=1.0A
0.35
0.30
0.25
IO=0.75A
0.20
0.15
IO=0.5A
0.10
IO=0.25A
0.05
-20 0 20 40 60 80 100 120
Junction temperature Tj (˚C)
Fig.17 Circuit Operating Current vs. Input
Voltage (PQ09TZ51)
VC=2.7V, Ci=0.33µF, C0=47µF
30
PQ05TZ51/PQ05TZ11 Series
Fig.16 Circuit Operating Current vs. Input
Voltage (PQ05TZ51)
VC=2.7V, Ci=0.33µF
C0=47µF
30
20
10
RL=10Ω
RL=20Ω
RL=∞
012345678
Input voltage VIN (V)
Fig.18 Circuit Operating Current vs. Input
Voltage (PQ12TZ51)
VC=2.7V, Ci=0.33µF, C0=47µF
30
20
10
RL=18Ω
RL=36Ω
RL=∞
0
5
10
15
Input voltage VIN (V)
Fig.19 Circuit Operating Current vs. Input
Voltage (PQ05TZ11)
VC=2.7V , Ci=0.33µF
C0=47µF
30
20
RL=5Ω
10
RL=10Ω
RL=∞
012345678
Input voltage VIN (V)
20
RL=24Ω
10
RL=48Ω RL=∞
0
5
10
15
Input voltage VIN (V)
Fig.20 Circuit Operating Current vs. Input
Voltage (PQ09TZ11)
VC=2.7V, Ci=0.33µF, C0=47µF
30
20
10
0
RL=9Ω
RL=18Ω
5
10
Input voltage VIN (V)
RL=∞
15