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CMPWR025R

P1-P3P4-P6P7-P9P10-P10
© 2008 California Micro Devices Corp. All rights reserved.
4 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com
Issue B – 06/23/08
CMPWR025
Specifications (cont’d)
Note 1: Operating Characteristics are over Standard Operating Conditions unless otherwise specified.
Note 2: Hysteresis level defines the maximum level of acceptable noise on V
CC
during switching. Excessive parasitic inductance on
V
CC
board traces to the CMPWR025 may require an input capacitor to adequately filter the supply noise to below the hyster-
esis level. This will ensure that precise switching occurs between V
CC1
and V
CC2
supply inputs.
Note 3: This is the time, after the select/deselect threshold is reached, for the switches to react. Not tested, guaranteed by device
design and characterization.
Note 4: Guaranteed by design and characterization.
ELECTRICAL OPERATING CHARACTERISTICS
(SEE NOTE 1)
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
V
CCDES1
V
CC1
Deselect V
CC1
deselect level below V
CC2
; HYS input
(Pin 8) floating
50 125 200 mV
V
CCDES2
V
CC2
Deselect 2 V
CC1
deselect level below V
CC2
; HYS input
(Pin 8) grounded
90 200 300 mV
V
CC1SEL
V
CC1
Select Preference 10 50 100 mV
V
HYS1
V
HYS2
Hysteresis
V
CC1SEL
-V
CC1DES
V
CC1SEL
-V
CC1DES
HYS input (Pin 8) floating; Note 2
HYS input (Pin 8) grounded; Note 2
40
80
75
150
100
200
mV
mV
t
DL
t
DH
Switching Delay V
CC1,2
falltime < 100ns; Note 3
V
CC1,2
risetime < 100ns; Note 3
200
200
ns
ns
R
SW
Switch Resistance I
LOAD
= 0 to 600mA; V
CC1,2
= 2.8V; Note 4
I
LOAD
= 0 to 600mA; V
CC1,2
= 5.0V; Note 4
0.28
0.21
0.4
0.3
Ω
Ω
V
SW
Voltage Drop Across Switch
(V
CC1,2
- V
OUT
)
I
OUT
= 100mA; V
CC1,2
= 2.8V; Note 4
I
OUT
= 200mA; V
CC1,2
= 2.8V; Note 4
I
OUT
= 600mA; V
CC1,2
= 2.8V; Note 4
I
OUT
= 100mA; V
CC1,2
= 5.0V; Note 4
I
OUT
= 200mA; V
CC1,2
= 5.0V; Note 4
I
OUT
= 600mA; V
CC1,2
= 5.0V; Note 4
28
56
168
21
42
125
40
80
240
30
60
180
mV
mV
mV
mV
mV
mV
I
RCC1
I
RCC2
Reverse Leakage V
CC1
=0V; V
CC2
= 5.0V
V
CC1
=5.0V; V
CC2
= 0V
x
x
100
100
µA
µA
I
CC1
, I
CC2
Supply Current When selected (I
OUT
= 0)
When NOT selected
20
1
µA
µA
I
GND
Ground Pin Current V
CC1
= V
CC2
= 5.0V; I
LOAD
= 0mA to 600mA 20 50 µA
© 2008 California Micro Devices Corp. All rights reserved.
490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com 5
Issue B – 06/23/08
CMPWR025
Selection Threshold Diagrams
Figure 1. Supply Threshold Diagram
(Hysteresis input pin floating, see Typical Application Circuit, pg. 1)
Figure 2. Supply Threshold Diagram
(Hysteresis input tied to GROUND, see Typical Application Circuit, pg. 1)
© 2008 California Micro Devices Corp. All rights reserved.
6 490 N. McCarthy Blvd., Milpitas, CA 95035-5112 ● Tel: 408.263.3214 ● Fax: 408.263.7846 ● www.cmd.com
Issue B – 06/23/08
CMPWR025
CMPWR025 Typical DC Characteristics
The Switch Resistance vs. Temperature curve
shown in Figure 3 illustrates the switch resistance
measured at 600mA load with V
CC
equal to 3.3V and
5V. The resistance is shown at a temperatures range of
-40°C to 70°C. When the temperature rises from 25° to
70°C, the switch resistance increases by about 20%.
Figure 3. Switch Resistance vs. V
CC
with Temperature
The Supply Current vs. Temperature curve shown in
Figure 4 illustrates the internal supply current with V
CC
equal to 3.3V and 5V. This current is drawn from the
selected V
CC
input, and is dissipated through the
ground pin (pin 5). This current is independent of load
current.
Figure 4. Supply Current vs. Temperature
The Hysteresis Voltage vs. Temperature curve
shown in Figure 5 illustrates how the hysteresis volt-
ages vary with temperature. ‘V
HYS
1’ is the hysteresis
value if pin 8 is left unconnected, ‘V
HYS
2’ is the hyster-
esis value if pin 8 is connected to ground. ‘V
CC
1sel’ is
the voltage below V
CC
2 at which Vcc1 will be selected
(refer to selection threshold diagrams on page 5).
These three voltages are independent of the V
CC
oper-
ating voltage.
Figure 5. Hysteresis Voltage vs. Temperature
Power Dissipation and Output Current
Considerations
The CMPWR025 is supplied in an MSOP package
which has a maximum power dissipation rating of 0.3W.
It is important that the heat generated within the part
does not exceed this rating. The heat generated by the
load current is given by:
P
DISS
= V
SW
X I
LOAD
or
P
DISS
= R
SW
X (I
LOAD
)
2
At a typical load of 375mA the P
DISS
is just 0.4 x
(0.375)
2
= 56mW.
Switch resistance vs. Temperature
Switch Resistance (ohm)
Vcc = 3.3V
Vcc = 5.0V
0.40
0.35
0.30
0.25
0.20
0.15
0.10
-40 -30 -20 -10 0 10 20 304050 6070
Icc (uA)
Temperature (degree C)
V
cc
= 5.0V
V
cc
= 3.3V
40
-40 -30 -20 -10 0 10 20 3040506070
35
30
25
20
15
10
5
0
Hysteresis Voltage (mV)
Temperature (degree C)
V
HYS
2
V
HYS
1
V
CC
1sel
200
175
150
125
100
-40 -30 -20 -10
75
50
10 20 3040506070
25
0
0
P1-P3P4-P6P7-P9P10-P10

CMPWR025R

Mfr. #:
Buy CMPWR025R
Manufacturer:
ON Semiconductor
Description:
IC REG LINEAR 600MA 8MSOP
Lifecycle:
New from this manufacturer.
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