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UC3656 датащи(PDF) 1 Page - Unisonic Technologies

номер детали UC3656
подробное описание детали  1MHz,800mA SYNCHRONOUS BUCK CONTROLLER
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производитель  UTC [Unisonic Technologies]
домашняя страница  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

UC3656 датащи(HTML) 1 Page - Unisonic Technologies

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UNISONIC TECHNOLOGIES CO., LTD
UC3656
Preliminary
CMOS IC
www.unisonic.com.tw
1 of 7
Copyright © 2010 Unisonic Technologies Co., Ltd
QW-R502-469.A
1MHz,800mA SYNCHRONOUS
BUCK CONTROLLER
DESCRIPTION
The UTC UC3656 is a synchronous buck controller for a DC/DC
converter optimized for high-performance microprocessor applications.
It is configured with current mode for excellent line and load
transient response. At 1MHz operation frequency, the use of small
surface mount inductor and capacitor is enabled. The built-in
synchronous switch saves the use of an external Schottky diode and
increases efficiency.
The UTC UC3656 is a low-noise synchronous step-down DC/DC
converter that is ideally suited for systems requiring supplies from a
1-cell Li-ion battery or from a 3-cell to 4-cell NiCd, NiMH, or alkaline
battery.
The UTC UC3656 is generally applied in power supply for portable
devices and USB-based power system.
FEATURES
* High Efficiency (95%) Possible
* Input Voltage Range: 2.5V ~ 5.5V
* Schottky Diode is Saved
* Output Current: 800mA (@5V Input 3.3V Output)
* 1.0MHz Oscillation Frequency
* Internal ON/OFF
* 100% Duty Cycle Allows Low Dropout Operation
* Stand-by Current: 1μA (Max.)
ORDERING INFORMATION
Ordering Number
Package
Packing
UC3656G-AF5-R
SOT-25
Tape Reel
MARKING


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