CMPWR300 Ver la hoja de datos (PDF) - California Micro Devices Corp

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CMPWR300

500mA SmartOR™ DUAL REGULATOR WITH V AUX SWITCH

California Micro Devices Corp 

CALIFORNIA MICRO DEVICES

Fig 1.4.

Ground Current is shown across the entire range of load

conditions. The ground current has minimal variation

across the range of load conditions and shows only a

slight increase at maximum load due to the current limit

protection circuitry.

2.0

1.5

1.0

0.5

0.0

0

CMPWR300

Fig 1.4. Ground Current

100

200

300

400

500

Load Current [mA]

Fig 1.5.

VCC Supply Current of the device is shown across the

entire VCC range for both VAUX present (3.3V) and absent

(0V).

In the absence of VAUX, the supply current remains fixed

at approximately 1mA when VCC reaches the voltage level

of about 2.5V. At this point the regulator is enabled and

a supply current of 1.0mA is conducted.

When VAUX is present, the VCC supply current is less than

10uA until VCC exceeds VAUX, at which point VCC then

powers the controller (0.15mA). When VCC reaches VSELECT,

the regulator is enabled.

Fig 1.5. Vcc Supply Current (No Load)

10000

1000

Vaux = 0V

100

10

1

Vaux = 3.3V

2

3

4

5

Vcc [V]

© 2000 Calirornia Micro Devices Corp. All rights reserved.

12/5/2000 215 Topaz Street, Milpitas, California 95035 Tel: (408) 263-3214 Fax: (408) 263-7846 www.calmicro.com

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