ADP125(Rev0) View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
ADP125 Datasheet PDF : 20 Pages
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JUNCTION TEMPERATURE CALCULATIONS
140
TJ MAX
120
100
ILOAD = 500mA
ILOAD = 400mA
80
ILOAD = 300mA
60
ILOAD = 200mA
40
20
0
0.5
ILOAD = 10mA
ILOAD = 100mA ILOAD = 1mA
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VIN – VOUT (V)
Figure 34. Junction Temperature vs. Power Dissipation,
1000 mm2 of PCB Copper, TA = 25°C
140
TJ MAX
120
ILOAD = 500mA
100
ILOAD = 400mA
ILOAD = 300mA
80
ILOAD = 200mA
60
40
ILOAD = 10mA
20
ILOAD = 100mA ILOAD = 1mA
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VIN – VOUT (V)
Figure 35. Junction Temperature vs. Power Dissipation,
500 mm2 of PCB Copper, TA = 25°C
140
TJ MAX
120
ILOAD = 500mA
ILOAD = 400mA
100
80
ILOAD = 300mA
ILOAD = 200mA
60
ILOAD = 100mA
40
ILOAD = 10mA
20
ILOAD = 1mA
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VIN – VOUT (V)
Figure 36. Junction Temperature vs. Power Dissipation,
40 mm2 of PCB Copper, TA = 25°C
ADP124/ADP125
140
TJ MAX
120
ILOAD = 150mA
ILOAD = 100mA
100
ILOAD = 75mA
80
60
ILOAD = 10mA
40
ILOAD = 50mA
ILOAD = 25mA
ILOAD = 1mA
20
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VIN – VOUT (V)
Figure 37. Junction Temperature vs. Power Dissipation,
1000 mm2 of PCB Copper, TA = 50°C
140
TJ MAX
120
ILOAD = 500mA
ILOAD = 400mA
100
ILOAD = 300mA
80
60
ILOAD = 10mA
40
ILOAD = 200mA ILOAD = 100mA
ILOAD = 1mA
20
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VIN – VOUT (V)
Figure 38. Junction Temperature vs. Power Dissipation,
500 mm2 of PCB Copper, TA = 50°C
140
TJ MAX
120
100
ILOAD = 300mA
ILOAD = 200mA
80
ILOAD = 100mA
60
ILOAD = 10mA
40
ILOAD = 500mA ILOAD = 400mA
ILOAD = 1mA
20
0
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
VIN – VOUT (V)
Figure 39. Junction Temperature vs. Power Dissipation,
40 mm2 of PCB Copper, TA = 50°C
Rev. 0 | Page 15 of 20
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