CMPWR280 datasheet(5/11 Pages) ONSEMI

5 / 11 page

CMPWR280

http://onsemi.com

TYPICAL DC CHARACTERISTICS

Unless stated otherwise, all DC characteristics were

measured at room temperature with a nominal VCC supply

voltage of 5.0 V and an output capacitance of 10

mF.

VCC Line Regulation, as shown in V, is measured while

forcing the deselect threshold to an artificial low level for

loads of 100 mA, 500 mA and 1.5 A. At the maximum rated

load of 1.5 A, a drop in line regulation occurs when the VCC

supply voltage drops below 3.8 V. For light load conditions

(100 mA), regulation is maintained as low as 3.2 V

Figure 1. VCC Line Regulation

VCC Load Regulation (pulse condition) performance is

shown up to and beyond the rated load. A change in load

from 10% to 100% of rated current (150 mA to 1500 mA)

results in an output voltage change of about 20 mV. This

translates into an effective output impedance of less than

15 M

Figure 2. VCC Load Regulation

VSBY Load Regulation (pulse condition) performance

is shown up to and beyond the rated load. A change in load

from 10% to 100% of rated (50 mA to 500 mA) results in an

output voltage change of about 20 mV. This translates into

an effective output impedance of less than 50 M

Figure 3. VSBY Load Regulation

Ground Current is shown across the entire range of load

conditions in Ground Current. The ground current of 2 mA

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 4. Ground Current

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