L11810.pdf 데이터시트 (총 6 페이지) - 파일 다운로드 L11810 데이타시트 다운로드

No Preview Available !

UNISONIC TECHNOLOGIES CO., LTD
L11810
Preliminary
1A CMOS LOW DROPOUT
VOLTAGE
„ DESCRIPTION
As UTC LDO, the features of the UTC L11810 include low
quiescent current and very low dropout voltage.
In order to prevent from the bad operating conditions, there are
internal thermal shutdown and current fold-back. For stably
operation, the UTC L11810 should be connected to an output
capacitance of 2.2μF or larger.
The UTC L11810 is ideal for battery applications, such as
portable electronics, wireless devices, cordless phones, PC
peripherals and battery powered widgets.
„ FEATURES
* Extra low dropout voltage
* Output current: 1A (guaranteed)
* Output voltage accuracy: ±1.5%
* Quiescent current: 30μA
* Internal Over-Temperature shutdown
* With Current limiting
* Internal short circuit current fold-back
* Pre-set output voltages in factory
* Very low temperature coefficient
* Halogen Free
„ ORDERING INFORMATION
Ordering Number
Package
L11810G-xx-AA3-A-R
SOT-223
L11810G-xx-AA3-D-R
SOT-223
Note: Pin Assignment: G:GND O:VOUT I:VIN
xx: Output Voltage, refer to Marking Information.
Pin Assignment
GO
I
I GO
CMOS IC
1
SOT-223
Packing
Tape Reel
Tape Reel
www.DataSheet4U.com
www.unisonic.com.tw
Copyright © 2010 Unisonic Technologies Co., Ltd
1 of 6
QW-R502-329.c

No Preview Available !

L11810
„ MARKING INFORMATION
PACKAGE
VOLTAGE CODE
SOT-223
28 :2.8V
33 :3.3V
Preliminary
MARKING
„ PIN CONFIGURATION
CMOS IC
„ PIN DESCRIPTION
PIN NO
1
2
3
PIN NAME
VIN
GND
VOUT
DESCRIPTION
Input voltage pin which should be decoupled with 1µF or greater capacitor.
Ground.
Output voltage pin which should be decoupled with a ceramic capacitor (value: 2.2µF or
larger and low ESR).
www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 6
QW-R502-329.c

No Preview Available !

L11810
„ BLOCK DIAGRAM
VIN
Preliminary
Overcurrrent
Shutdown
Thermal
Shutdown
CMOS IC
VREF=1.215V
AMP
VOUT
R1
R2
GND
www.DataSheet4U.com
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
3 of 6
QW-R502-329.c