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UC3555 Datasheet PDF

Unisonic Technologies UC3555

The UC3555 is a micropower step-up DC/DC in 8-lead TSSOP package. It is designed for 2-cell battery powered systems such as digital cameras, cell phones and PDAs. The regulator starts-up at 1.3V and operates after the start at an input voltage as low as 1V.
Part No. UC3555
Datasheet UC3555 Download
Manufacturer
Unisonic Technologies
Description 500MA HIGH EFFICIENCY BOOST REGULATOR
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UC3555 datasheet page 1 preview

DESCRIPTION

A Minimum off-time, variable on-time control scheme provides high efficiency over a wide range of load conditions. The combination of build-in power transistors, synchronous rectification, low battery detection and low supply current, make the UC3555 ideal for portable applications.
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FEATURES

* Low power PFM step-up DC/DC * Low input voltage range from 1.6V to 4.5V * Adjustable output voltage from 3V to 5V * 500mA output current * 95% peak Efficiency * internal synchronous rectifier * Low battery detection * Current limited protection * Current Anti-Drawback protection
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TYPICAL APPLICATIONS

* DSCS * PDAs * Cell phones, smart phones * Portable instrumentations * 2-3 AA/AAA cells operated devices * Single cell Li-Ion operated devices Copyright © 2016 Unisonic Technologies Co., Ltd CMOS IC 1 of 7 QW-R101-047.a UC3555
● ORDERING INFORMATION Ordering Number UC3555G-P08-R Advance Package TSSOP-8 CMOS IC Packing Tape Reel
● MARKING UNISONIC TECHNOLOGIES CO., LTD 2 of 7 QW-R101-0...
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