2002 California Micro Devices Corp. All rights reserved.
01/24/02
215 Topaz Street, Milpitas, California 95035
L Tel: (408) 263-3214 L Fax: (408) 263-7846 L www.calmicro.com
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215 Topaz Street, Milpitas, California 95035
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01/24/02
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2002 California Micro Devices Corp. All rights reserved.
01/24/02
215 Topaz Street, Milpitas, California 95035
L Tel: (408) 263-3214 L Fax: (408) 263-7846 L www.calmicro.com
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2002 California Micro Devices Corp. All rights reserved.
4
215 Topaz Street, Milpitas, California 95035
L Tel: (408) 263-3214 L Fax: (408) 263-7846 L www.calmicro.com
01/24/02
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Line Regulation with 500mA Load
1.22
1.24
1.26
1.28
1.30
1.32
1.34
1.36
1.38
2.8
3.0
3.2
3.4
3.6
V
OUT
[V]
Load Regulation
1.22
1.24
1.26
1.28
1.30
1.32
1.34
1.36
1.38
0
200
400
600
800
1000
Load Current [mA]
V
OUT
[V]
Supply Current vs. Voltage
0
100
200
300
400
500
600
700
0
1
2
3
4
5
Supply Current [uA]
Ground Current vs. Output Load
0
100
200
300
400
500
600
700
0
200
400
600
800
Load Current [mA]
Ground Current [uA]
VCC [V]
VCC [V]
2002 California Micro Devices Corp. All rights reserved.
01/24/02
215 Topaz Street, Milpitas, California 95035
L Tel: (408) 263-3214 L Fax: (408) 263-7846 L www.calmicro.com
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Cold Start Power-up with Rated Load
Full Power Down with Rated Load
Load Transient Response (50mA to 500mA)
Line Transient Step Response (0.6Vp-p)
2002 California Micro Devices Corp. All rights reserved.
6
215 Topaz Street, Milpitas, California 95035
L Tel: (408) 263-3214 L Fax: (408) 263-7846 L www.calmicro.com
01/24/02
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FDQ EH HVWLPDWHG E\ WKH IROORZLQJ WKHUPDO HTXDWLRQ
T
JUNC
= T
AMB
+ P
D
(
JC
) + P
D
(
CA
)
= T
AMB
+ P
D
(
JA
)
7KH &0 XVHV D WKHUPDOO\ HQKDQFHG 0623 SDFN
DJH LQ ZKLFK WKH *1' SLQV WKURXJK DUH LQWHJUDO WR
WKH OHDGIUDPH :KHQ WKLV SDFNDJH LV PRXQWHG RQ D
GRXEOH VLGHG SULQWHG FLUFXLW ERDUG ZLWK WZR VTXDUH
LQFKHV RI FRSSHU DOORFDWHG IRU KHDW VSUHDGLQJ WKH
UHVXOWLQJ
JA
LV DERXW 0C/W
Based on a power dissipation of .8W (Load x Vin-Vout =
.4A x [3.3V-1.3V]) with an ambient of 70
C, the result-
ing junction temperature will be:
T
JUNC
= T
AMB
+ P
D
(
JA
)
= 70
C + .8W (70C/W)
= 70
C + 55C = 125C
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Measurements showing performance up to a junction
temperature of 125
C are presented in
)LJXUH
They
were performed under light load conditions (5mA); this
allows the ambient temperature to be representative of
the internal junction temperature.
Note: The use of multi-layer board construction with
separate ground and power planes will further enhance
the overall thermal performance. In the event of no cop-
per area being dedicated for heat spreading, a multi-
layer board construction using only the minimum size
pad layout will typically provide the CM3001 with an
overall
JA
of 70
C/W, which allows up to 0.8W to be
dissipated safely.
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!071472,3.0 ;8 %02507,9:70
Output Voltage with temperature (5mA Load)
1.22
1.24
1.26
1.28
1.30
1.32
1.34
1.36
1.38
-50
0
50
100
150
Temperature [
o
C]
V
OUT
[V]
Output Voltage with temperature (500mA Load)
1.25
1.26
1.27
1.28
1.29
1.30
1.31
1.32
1.33
1.34
1.35
-50
-25
0
25
50
75
Temperature [
o
C]
V
OUT
[V]
Ground Current with Temperature (No Load)
0
100
200
300
400
500
600
700
-50
0
50
100
150
Temperature [
o
C]
Ground Current [uA]
2002 California Micro Devices Corp. All rights reserved.
01/24/02
215 Topaz Street, Milpitas, California 95035
L Tel: (408) 263-3214 L Fax: (408) 263-7846 L www.calmicro.com
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