|
UNISONIC TECHNOLOGIES |
UNISONIC TECHNOLOGIES CO., LTD
LR4XXYY
Preliminary
Dual,Low-Noise,200mA LDO
REGULATOR
CMOS IC
DESCRIPTION
The U TC LR4XXYY are dual voltage regu lator ICs that have
high output voltage accuracy, low dropout, low supply current, and
high ri pple rej ection. Ever y Channel of UT C LR4XXYY series
consists of a voltage ref erence u nit an d over temp erature
protection, simultan eity; a lso consists of an error am plifier, a
current limit circuit, resistors fo r setting outp ut voltage, and a chip
enable circu it, respectively. T he EN1 and E N2 pins contro l each
output respectively, When both outputs shutdown simultaneously,
the chi p will be turn off an d cons umes nearly z ero o peration
current which is suitable for battery-power devices.
The load transient respons e and line transient response of the
UTC LR4XXYY Series are excellent, so these ICs are suit able for
hand-held communication equipment power supply.
FEATURES
* 200mA Guaranteed Output Current(Each LDO)
* Dual Shutdown Pins Control Each Output
* 120mV Dropout at 100mA Load
* Current Limiting Protection
* Thermal Shutdown Protection
* Excellent Line/Load Transient
* RoHS Compliant and 100% Lead (Pb)-Free
ORDERING INFORMATION
Note:
Ordering Number
Lead Free
Halogen Free
LR4XXYYL-AG6-R
LR4XXYYG-AG6-R
XXYY: Output Voltage, refer to Marking Information.
54
6
1 23
SOT-26
Package Packing
SC59-6
Tape Reel
www.unisonic.com.tw
Copyright © 2013 Unisonic Technologies Co., Ltd
1 of 7
QW-R502-A39.a
http://www.Datasheet4U.com
LR4XXYY
Preliminary
MARKING INFORMATIONS
PACKAGE Code
SOT-26
A
B
C
D
E
F
VOLTAGE CODE
XX YY
28: 2.8V 28: 2.8V
30: 3.0V 30: 3.0V
12: 1.2V 18: 1.8V
18: 1.8V 28: 2.8V
18: 1.8V 33: 3.3V
33: 3.3V 18: 1.8V
PIN CONFIGURATIONS
MARKING
CMOS IC
PIN DESCRIPTION
PIN NO.
1
2
3
4
5
6
PIN NAME
VOUT2
GND
EN2
EN1
VIN
VOUT1
DESCRIPTION
Channel 2’s voltage output
Ground
Channel 2’s output enable control Pin
Channel 1’s output enable control Pin
Voltage Input pin
Channel 1’s voltage output
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 7
QW-R502-A39.a
|