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UC3500 PDF Datasheet ( 特性, スペック, ピン接続図 )

部品番号 UC3500
部品説明 HIGH EFFICIENCY VFM CONTROLLED STEP-UP DC/DC CONVERTER
メーカ UTC
ロゴ UTC ロゴ 



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UC3500 Datasheet, UC3500 PDF,ピン配置, 機能
UNISONIC TECHNOLOGIES CO., LTD
UC3500
CMOS IC
HIGH EFFICIENCY VFM
CONTROLLED STEP-UP
DC/DC CONVERTER
APPLICATIONS
* Cellular telephones
* PDA and hand held instruments
* Palmtop and notebook computer
* Portable equipment
* Battery powered equipment
DESCRIPTION
The UTC UC3500 Step-up DC/DC converters are optimized for
applications that prioritize high efficiency and high frequency. The
efficiency is greatly improved by utilizing an internal VFM controlled
scheme that switches with fixed frequency and is adjustable up to
more than 300 KHz depending on the load.
The UTC UC3500 requires only three external components to
realize the conversion from the battery voltage to the selected
output voltage in the range of 2.5V ~ 5.5V.
www.DataSheet4U.com
The start-up voltage of UTC UC3500 is guaranteed at 0.8V and
the device is operating down to 0.5V. The Output current is
guaranteed up to 150mA, while quiescent current is only 18µA.
3 21
5
4
SOT-25
1
SOT-89
*Pb-free plating product number: UC3500L
FEATURES
* 0.8V start-up voltage
* 0.5V hold-on voltage
* Output current up to 150mA
* Low supply current of 18µA
* Wide output voltage range of 2.5V~5.5V
* Output voltage accuracy ±2%
* High efficiency up to 88%
* Low profile and minimum external components
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
UC3500-xx-AB3-R
UC3500L-xx-AB3-R
UC3500-xx-AF5-R
UC3500L-xx-AF5-R
Package
SOT-89
SOT-25
Packing
Tape Reel
Tape Reel
UC3550L-xx-AB3-R
(1)Packing Type
(2)Package Type
(3)Voltage Code
(4)Lead Plating
(1) R: Tape Reel
(2) AB3: SOT-89, AF5: SOT-25
(3) xx: reference to Marking Information
(4) L: Lead Free Plating, Blank: Pb/Sn
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., Ltd
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