Datasheet
40V, Ultra-Low Quiescent-Current
Linear Regulators in 6-Pin TDFN/8-Pin SO
Maxim Integrated 11
MAX15006/MAX15007
Example 2 (TDFN Package):
T
A
= +85°C
V
IN
= 14V
V
OUT
= 5V
Calculate the maximum allowable package dissipation
at the given temperature as follows:
Then determine the maximum output current:
Example 3 (TDFN Package):
T
A
= +50°C
V
IN
= 9V
V
OUT
= 5V
Calculate the maximum allowable package dissipation
at the given temperature as follows:
P
D
= 1.9048W
Find the maximum output current:
In Examples 2 and 3, the maximum output current is
calculated as 172mA and 476mA, respectively; howev-
er, the allowable output current cannot exceed 50mA.
Alternately, use Figures 6a and 6b to quickly determine
the maximum allowable output current for selected
ambient temperatures and input voltages.
Output-Capacitor Selection
and Regulator Stability
For stable operation over the full temperature range
and with load currents up to 50mA, use a low-ESR
2.2μF (min) ceramic or tantalum output capacitor. Use
larger output-capacitor values such as 22μF to reduce
noise, improve load-transient response, and power-
supply rejection.
Some ceramic dielectrics exhibit large capacitance and
ESR variations with temperature. Ensure the minimum
capacitance under worst-case conditions does not
drop below 1.3μF to ensure output stability. With an
X7R dielectric, 2.2μF should be sufficient at all operat-
ing temperatures.
I
1.9048W
9V 5V
476mA
OUT(MAX)
(
=
−
=⇒I
OUT MAX))
= 50mA
I
1.5478W
14V 5V
172mA
OUT(MAX)
(
=
−
=⇒I
OUT MAXX
mA
)
= 50
P 1.9048W 0.0238
W
C
85 C 70 C 1.
D
=−
°
°−°
()
= 55478W
MAX15006 fig05a
V
IN
(V)
I
OUT(MAX)
(mA)
353020 2510 155
5
10
15
20
25
30
35
40
45
50
55
60
0
040
T
A
= +85
°
C
T
A
= +70
°
C
T
A
= +125
°
C
V
OUT
= 5V
6-PIN TDFN
Figure 6a. Calculated Maximum Output Current vs. Input
Voltage (6-Pin TDFN-EP)
MAX15006 fig05b
V
IN
(V)
I
OUT(MAX)
(mA)
353020 2510 155
5
10
15
20
25
30
35
40
45
50
55
60
0
040
T
A
= +85
°
C
T
A
= +70
°
C
T
A
= +125
°
C
V
OUT
= 5V
8-PIN SO-EP
Figure 6b. Calculated Maximum Output Current vs. Input
Voltage (8-Pin SO-EP)