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ZXCP330E6

Zetex Semiconductors
Part Number ZXCP330E6
Manufacturer Zetex Semiconductors
Description SWITCHED CAPACITOR DC-DC CONVERTER
Published Apr 17, 2005
Detailed Description ZXCP330 SWITCHED CAPACITOR DC-DC CONVERTER DEVICE DESCRIPTION The ZXCP330 is the first in a series of switched capacito...
Datasheet PDF File ZXCP330E6 PDF File

ZXCP330E6
ZXCP330E6

Overview
ZXCP330 SWITCHED CAPACITOR DC-DC CONVERTER DEVICE DESCRIPTION The ZXCP330 is the first in a series of switched capacitor DC to DC converters, converting an input voltage from between 2 volts and 4.
4 volts to a regulated output voltage of 3.
3V with a maximum load current of 40mA.
The device operates with one flying capacitor and two small bypass capacitors at input and output making for a very small solution.
Very low quiescent current makes these devices ideal for low power and battery powered applications.
Regulation is achieved by sensing the output and enabling the device charge pump when it falls below the sense threshold.
This technique leads to high efficiency conversion.
The method is also efficient for low current loads.
Here the duty cycle will be low and the quiescent current drawn whilst the charge pump is disabled is very small.
The device includes a pin for logic controlled shutdown of the output, and also features thermal shutdown, which protects against short circuit da...


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