Datasheet

UNISONIC TECHNOLOGIES CO., LTD
LR6XXYY
Preliminary
CMOS IC
DUAL OUTPUT LOW ESR CAP
LOW-DROPOUT 600MA
LINEAR REGULATOR

DESCRIPTION
The UTC LR6XXYY is a low noise and high accuracy LDO
voltage regulator which has the soft start function. Designers can
reduce power consumption more easily by applying EN function
that can turn off the output of each device and control the in rush
current through the soft start function.
The UTC LR6XXYY comes with low design cost and
outstanding output stability and its compatibility of working with low
ESR ceramic capacitors is undoubted. Besides, the level of stability
is ensured by the perfect transient response and PSRR derived
from a large frequency range.

HSOP-8
FEATURES
* VD=470mV @600mA (Typ.), VOUT ≥3.3V
* Range of Output Current:600mA / Channel
* Low Power Consumption:50μA (VOUT1 and VOUT2 Enable Mode).
* Standby Current:0.1μA (Typ.)
* Accurate:±2%
* High PSRR: 65 dB at 1kHz.
* Each Channel Output Current Limit Protection:950mA
* With Short Circuit Protection
* Output ON/OFF Control Function

ORDERING INFORMATION
Note:
Ordering Number
LR6XXYYG-SH2-R
xx: Output Voltage, refer to Marking Information.
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Copyright © 2014 Unisonic Technologies Co., Ltd
Package
HSOP-8
Packing
Tape Reel
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LR6XXYY
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Preliminary
CMOS IC
MARKING INFORMATIONS
PACKAGE
VOLTAGE CODE
XX
YY
12:1.2V
33:3.3V
33:3.3V
33:3.3V
MARKING
HSOP-8

PIN CONFIGURATION

PIN DESCRIPTION
PIN NO.
1
2, 3
4
5, 6, 8
7
PIN NAME
VOUT1
VIN
VOUT2
NC
GND (TAB)
DESCRIPTION
Output 1
Power input
Output 2
No connection
Ground
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LR6XXYY

Preliminary
CMOS IC
BLOCK DIAGRAM
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LR6XXYY

Preliminary
CMOS IC
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
VIN
7
V
EN Pin Voltage
VEN
7
V
Ambient Temperature
TA
-40 ~ 85
°C
Junction Temperature
TJ
150
°C
Storage Temperature
TSTG
-65 ~ 150
°C
Notes: Absolute maximum ratings are those values beyond which the device could be permanently damaged.
Absolute maximum ratings are stress ratings only and functional device operation is not implied.

THERMAL DATA
PARAMETER
Junction to Ambient
Junction to Case

SYMBOL
θJA
θJC
RATING
60
15
UNIT
°C/W
°C/W
ELECTRICAL CHARACTERISTICS
(VIN=VOUT+1V, VEN1=VEN2=VIN, TJ=25°C, unless otherwise specified) (Note 1)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP MAX UNIT
Input Voltage (Note 2)
VIN
1.6
6.0
V
Output Voltage Tolerance
VOUT
VIN=6.0V, IOUT=1mA
-2
2
%
Continuous Output Current
IOUT
600
mA
Quiescent Current
IQ
VEN2=VEN1=VIN
50
80
μA
IOUT1= 600mA, IOUT2=600mA,
55
80
μA
GND Pin Current
IGND
VEN2=VEN1=VIN
Standby Current
ISTBY
VEN1=VEN2=0
0.1
μA
Output Current Limit
IIL
650
950
mA
Short Circuit Current
VOUT=GND
400
mA
VOUT=1.8V
710
850
mV
Dropout Voltage
VDROP IOUT=600mA
VOUT=2.5V
580
700
mV
VOUT=3.3V
470
560
mV
Line Regulation
∆VLIR VIN=VOUT+ 1V~6V
3
16
mV
Load Regulation
∆VLOR IOUT=1mA~600mA
2
10
mV
Ripple Rejection
PSRR f=1kHz, Ripple=0.5VP-P,
65
dB
Output Noise Voltage
f= 10~100KHz
24
μVrms
Temperature Coefficient
TC
50
ppm/°C
Thermal Shutdown
VIN=VOUT+1V
150
°C
Temperature
Thermal Shutdown Hysteresis
35
°C
EN PIN SPECIFICATIONS
EN Pin Current
IEN
VEN1=VEN2= VIN
0.1
μA
Shutdown Exit Delay Time
∆t
100
μS
Max Output Discharge
RDSON_
20
Ω
Resistance to GND During
CLMP
Shutdown
VENH
Output ON
1.6
V
EN Input Threshold
VENL
Output OFF
0.25
V
Notes: 1. Specifications are production tested at TA=25°C. Specifications over the -40°C~85°C operating temperature
range are assured by design, characterization and correlation with Statistical Quality Controls (SQC).
2. VIN(min) is the higher value of VOUT + Dropout Voltage or 1.6V.
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www.unisonic.com.tw
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LR6XXYY

Preliminary
CMOS IC
TYPICAL APPLICATION CIRCUIT
UTC assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or
other parameters) listed in products specifications of any and all UTC products described or contained
herein. UTC products are not designed for use in life support appliances, devices or systems where
malfunction of these products can be reasonably expected to result in personal injury. Reproduction in
whole or in part is prohibited without the prior written consent of the copyright owner. The information
presented in this document does not form part of any quotation or contract, is believed to be accurate
and reliable and may be changed without notice.
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