ADP123 Analog Devices, ADP123 Datasheet - Page 15

• Manufacturer Part Number: ADP123
• Description: 5.5 V Input, 300 mA, Low Quiescent Current, CMOS Linear Regulator, Adjustable Output Voltage
• Manufacturer: Analog Devices

JUNCTION TEMPERATURE CALCULATIONS FOR TSOT PACKAGE
140
120
100
140
120
100
80
60
40
20
80
60
40
20
0
0
0.5
0.5
Figure 38. Junction Temperature vs. Power Dissipation,
Figure 39. Junction Temperature vs. Power Dissipation,
500 mm
100 mm
1.0
1.0
T
I
T
I
LOAD
LOAD
J
J
MAX
MAX
2
2
= 1mA
of PCB Copper, T
of PCB Copper, T
= 1mA
1.5
1.5
V
V
OUT
OUT
– V
– V
I
LOAD
IN
IN
I
I
(V)
(V)
LOAD
LOAD
2.0
2.0
= 150mA
A
A
I
LOAD
= 25°C
= 25°C
= 150mA
I
= 10mA
LOAD
I
LOAD
I
I
I
I
LOAD
LOAD
LOAD
LOAD
= 300mA
= 10mA
2.5
2.5
= 300mA
= 25mA
= 25mA
= 100mA
= 100mA
3.0
3.0
Rev. A | Page 15 of 24
140
120
100
140
120
100
80
60
40
20
80
60
40
20
0
0
0.5
0.5
Figure 40. Junction Temperature vs. Power Dissipation,
Figure 41. Junction Temperature vs. Power Dissipation,
I
500 mm
LOAD
1.0
1.0
0 mm
I
LOAD
T
I
LOAD
J
T
= 300mA
J
MAX
2
MAX
of PCB Copper, T
2
= 1mA
= 1mA
of PCB Copper, T
1.5
1.5
V
V
OUT
OUT
– V
– V
I
LOAD
I
IN
IN
LOAD
(V)
(V)
ADP122/ADP123
2.0
2.0
= 300mA
I
I
A
LOAD
LOAD
A
= 10mA
= 25°C
I
LOAD
= 50°C
= 150mA
= 25mA
I
I
I
LOAD
LOAD
LOAD
I
= 10mA
LOAD
2.5
2.5
= 25mA
= 100mA
= 150mA
= 100mA
3.0
3.0