CMPWR150A_R Ver la hoja de datos (PDF) - California Micro Devices Corp
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CMPWR150A_R Datasheet PDF : 8 Pages
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CALIFORNIA MICRO DEVICES
CMPWR150
Typical DC Characteristics
Unless stated otherwise, all DC characteristics were
measured at room temperature with a nominal VCC supply
voltage of 5.0 volts and an output capacitance of 10µF.
The external PMOS switch was present and resistive load
conditions were used.
Load Regulation performance is shown from zero to
maximum rated load in Figure 2. A change in load from
10% to 100% of rated, results in an output voltage change
of less than 75mV. This translates into an effective output
impedance of approximately 0.15Ω.
The test data shown here was obtained from engineering
samples. The device was modified to allow the regulator
to function below the dropout threshold for the purpose
of obtaining test data. During normal operation,
production parts will shutdown the regulator below a
4.1V supply.
Dropout Characteristics of the regulator are shown in
Figure 1. At maximum rated load conditions (500mA), a
100mV drop in regulation occurs when the line voltage
collapses below 4.1V. For light load conditions (50mA),
regulation is maintained for line voltages as low as 3.5V.
In normal operation, the regulator is deselected at 4.1V,
which ensures a regulation output droop of less than
100mV is maintained.
Figure 2. Load Regulation.
Ground Current is shown across the entire range of
load conditions in Figure 3. The ground current has
minimal variation across the range of load conditions and
shows only a slight increase at maximum load. This slight
increase at rated load is due to the current limit protection
circuitry becoming active.
Figure 1. Dropout Characteristics.
Figure 3. Ground Current.
©1999 California Micro Devices Corp. All rights reserved.
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215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com
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