ADP151 Analog Devices, ADP151 Datasheet - Page 19

• Manufacturer Part Number: ADP151
• Description: Ultra Low Noise, 200 mA CMOS Linear Regulator
• Manufacturer: Analog Devices

In the case where the board temperature is known, use the
thermal characterization parameter, Ψ
junction temperature rise (see Figure 57 and Figure 58).
Maximum junction temperature (T
board temperature (T
following formula:
The typical value of Ψ
43°C/W for the 5-lead TSOT package, and 28.3°C/W for the 6-lead
LFCSP package.
T
140
120
100
J
80
60
40
20
= T
0
0.3
B
+ (P
0.8
D
× Ψ
MAXIMUM JUNCTION TEMPERATURE
1.3
Figure 57. WLCSP, T
JB
I
I
I
LOAD
LOAD
LOAD
B
JB
) and power dissipation (P
is 58°C/W for the 4-ball WLCSP package,
)
1.8
= 1mA
= 10mA
= 50mA
V
IN
2.3
– V
OUT
2.8
J
) is calculated from the
(V)
I
I
I
A
LOAD
LOAD
LOAD
= 85°C
JB
, to estimate the
3.3
= 100mA
= 150mA
= 200mA
3.8
D
) using the
4.3
4.8
Rev. D | Page 19 of 24
(5)
140
120
100
140
120
100
80
60
40
20
80
60
40
20
0
0.3
0
0.3
0.8
MAXIMUM JUNCTION TEMPERATURE
1.3
MAXIMUM JUNCTION TEMPERATURE
1.3
I
I
I
Figure 59. LFCSP, T
LOAD
LOAD
LOAD
I
I
I
Figure 58. TSOT, T
LOAD
LOAD
LOAD
1.8
= 1mA
= 10mA
= 50mA
= 1mA
= 10mA
= 50mA
2.3
V
V
IN
IN
2.3
– V
– V
OUT
OUT
2.8
A
(V)
(V)
A
I
I
I
3.3
I
I
I
LOAD
LOAD
LOAD
= 85°C
LOAD
LOAD
LOAD
= 85°C
3.3
= 100mA
= 150mA
= 200mA
= 100mA
= 150mA
= 200mA
3.8
4.3
4.3
ADP151
4.8
5.3