ADP124 Analog Devices, ADP124 Datasheet - Page 15

• Manufacturer Part Number: ADP124
• Description: 5.5V Input, 500 mA, Low Quiescent Current, CMOS Linear Regulator w/31 Fixed-output Voltages
• Manufacturer: Analog Devices

JUNCTION TEMPERATURE CALCULATIONS
Figure 36. Junction Temperature vs. Power Dissipation and copper area,
Figure 37. Junction Temperature vs. Power Dissipation and copper area,
Figure 38. Junction Temperature vs. Power Dissipation and copper area,
145
135
125
105
115
145
135
125
115
105
140
130
120
110
100
95
85
75
65
55
45
35
25
90
80
70
60
50
95
85
75
65
55
45
35
25
0
0
0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0
0.2
0.4
TOTAL POWER DISSIPATION (W)
TOTAL POWER DISSIPATION (W)
TOTAL POWER DISSIPATION (W)
0.6
MSOP, T
LFCSP, T
MSOP, T
0.8
A
A
A
1.0
= 25°C
= 25°C
= 50°C
1.2
1.4
1.6
6400 mm
500 mm
25 mm
T
6400 mm
500 mm
25 mm
T
6400 mm
500 mm
25 mm
T
J
J
J
MAX
MAX
MAX
1.8
2
2
2
2
2
2
2
2
2
2.0
Rev. A | Page 15 of 20
Figure 39. Junction Temperature vs. Power Dissipation and copper area,
Figure 40. Junction Temperature vs. Power Dissipation, MSOP package
Figure 41. Junction Temperature vs. Power Dissipation, LFCSP package
140
120
100
140
120
100
140
130
120
100
110
80
60
40
20
80
60
40
20
90
80
70
60
50
0
0
0
0
0
0.25
0.2
0.5
0.50
at various Board Temperatures
at various Board Temperatures
1.0
0.4
TOTAL POWER DISSIPATION (W)
TOTAL POWER DISSIPATION (W)
TOTAL POWER DISSIPATION (W)
0.75
0.6
1.5
LFCSP, T
1.00
0.8
2.0
A
1.25
= 50°C
1.0
2.5
ADP124/ADP125
1.50
1.2
3.0
1.75
T
T
T
T
T
T
T
T
T
T
B
B
B
B
B
B
B
B
J
J
3.5
1.4
= 25°C
= 50°C
= 65°C
= 85°C
MAX
= 25°C
= 50°C
= 65°C
= 85°C
MAX
2.00
6400 mm
500 mm
25 mm
T
J
MAX
1.6
4.0
2.25
2
2
2
2.50
1.8
4.5