ADP1754ACPZ-2.5-R7 datasheet(17/20 Pages) AD

17 / 20 page

Data Sheet

ADP1754/ADP1755

Rev. E | Page 17 of 20

Figure 42 through Figure 45 show junction temperature calcula-

tions for different board temperatures, load currents, VIN to

VOUT differentials, and areas of PCB copper.

140

120

100

0.25

0.75

1.25

1.75

2.25

2.75

VIN – VOUT (V)

MAX JUNCTION

TEMPERATURE

LOAD = 10mA

LOAD = 100mA

LOAD = 200mA

LOAD = 400mA

LOAD = 800mA

LOAD = 1.2A

Figure 42. 500 mm2 of PCB Copper, TB = 25°C, LFCSP

140

120

100

0.25

0.75

1.25

1.75

2.25

2.75

VIN – VOUT (V)

MAX JUNCTION

TEMPERATURE

LOAD = 10mA

LOAD = 100mA

LOAD = 200mA

LOAD = 400mA

LOAD = 800mA

LOAD = 1.2A

Figure 43. 500 mm2 of PCB Copper, TB = 50°C, LFCSP

140

120

100

0.25

0.75

1.25

1.75

2.25

2.75

VIN – VOUT (V)

MAX JUNCTION

TEMPERATURE

LOAD = 10mA

LOAD = 200mA

LOAD = 400mA

LOAD = 800mA

LOAD = 1.2A

LOAD = 100mA

Figure 44. 1000 mm2 of PCB Copper, TB = 25°C, LFCSP

140

120

100

0.25

0.75

1.25

1.75

2.25

2.75

VIN – VOUT (V)

MAX JUNCTION

TEMPERATURE

LOAD = 10mA

LOAD = 200mA

LOAD = 400mA

LOAD = 800mA

LOAD = 1.2A

LOAD = 100mA

Figure 45. 1000 mm2 of PCB Copper, TB = 50°C, LFCSP

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