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UC3380 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 UC3380
部品説明 PWM STEP UP DC-DC CONTROLLER
メーカ Unisonic Technologies
ロゴ Unisonic Technologies ロゴ 



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UC3380 Datasheet, UC3380 PDF,ピン配置, 機能
UNISONIC TECHNOLOGIES CO., LTD
UC3380
PWM STEP UP DC-DC
CONTROLLER
CMOS IC
„ DESCRIPTION
The UC3380 is PWM step up DC-DC switching controller that
operates from 0.9V. The low start up input voltage makes UC3380
specially designed for powering portable equipment from one or two
cells battery packs. This device consist of a soft start circuit, a reference
voltage source, an error amplifier, an oscillator, a phase compensation,
a PWM controller and an output drive circuit for driving external power
transistor.
Additionally, a chip enable feature is provided to power down the
converter for extended battery life. The device features a voltage mode
PWM control loop, providing stable and high efficiency operation over a
broad load current range.
„ FEATURES
* 0.9V Low Start-Up Input Voltage at 1mA Load
* Low Operation Current
* 0.5uA Low Shutdown Current
* Fix Frequency PWM at 300KHZ
* Built in PWM Switching Control Circuit ,Duty Ratio is 0~78%
* Output Voltage:0.1V Step Setting is Available Between 2.0V and 6.5V
* Soft Start Time: 3ms
* Shutdown Function
„ APPLICATIONS
*Portable Devices
*Electronic Games
*Portable Audio (MP3)
*Personal Digital Assistant (PDA)
*Digital still Cameras(DSC)
*Camcorders
*White LED Driver
*Single and Dual-Cell Battery Operated Products
„ ORDERING INFORMATION
Ordering Number
Lead Free
Halogen Free
UC3380L-xx-AF5-R
UC3380G-xx-AF5-R
Package
SOT-25
Packing
Tape Reel
www.unisonic.com.tw
Copyright © 2012 Unisonic Technologies Co., Ltd
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