CMPWR150SF Просмотр технического описания (PDF) - ON Semiconductor

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CMPWR150SF

500mA/3.3V SmartOR™ Power Regulator

ON Semiconductor 

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.

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 Dropout Characteristics. 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 1. Dropout Characteristics

Load Regulation performance is shown from zero to maximum rated load in Load Regulation. 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 0.15 ohms.

Figure 2. Load Regulation

Ground Current is shown across the entire range of load conditions in Ground Current. 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.

Rev. 3 | Page 6 of 15 | www.onsemi.com

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