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PQ1CZ1 View Datasheet(PDF) - Sharp Electronics

Part NameDescriptionManufacturer
PQ1CZ1 Surface Mount Type Chopper Regulator Sharp
Sharp Electronics Sharp
PQ1CZ1 Datasheet PDF : 8 Pages
1 2 3 4 5 6 7 8
Chopper Regulators
Fig. 4 Efficiency vs. Input Voltage
100
Tj=25˚C
90
VO=12V, IO=1.0A
80
VO=12V, IO=0.2A
70
VO=5V, IO=1.0A
60
VO=5V, IO=0.2A
50
0
10
20
30
40
Input voltage VIN (V)
Fig. 6 Stand-by Current vs. Input Voltage
Tj=25˚C
200
150
100
50
0
0 5 10 15 20 25 30 35 40
Input voltage VIN (V)
Fig. 8 Load Regulation vs. Output Current
1
Tj=25˚C
VIN=12V
Vo=5V
CIN=100µF
0.5
CO=470µF
L=210µH
0
0.5
0 0.2 0.4 0.6 0.8
1
Output current IO (A)
PQ1CZ1
Fig. 5 Switching Current vs. Output
Saturation Voltage
Tj=25˚C
2.0
1.5
1.0
0.5
0
0
0.5
1.0
1.5
Output saturation voltage VSAT (V)
Fig. 7 Reference Voltage Fluctuation vs.
Junction Temperature
2
VIN=12V
Vo=5V
1
0
1
2
25
0 25 50 75 100 125
Junction temperature Tj (˚C)
Fig. 9 Line Regulation vs. Input Voltage
1
Tj=25˚C, Io=0.2A
Vo=5V, CIN=100µF
CO=470µF, L=210µH
0.5
0
0.5
0
5 10 15 20 25 30 35 40
Input voltage VIN (V)
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