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LR1802 Datasheet(PDF) 3 Page - Unisonic Technologies

Part # LR1802
Description  1.0A LOW DROPOUT LINEAR REGULATOR WITH OUTPUT
PDF  5 Pages
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

LR1802 Datasheet(HTML) 3 Page - Unisonic Technologies

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LR1802
Preliminary
LINEAR INTEGRATED CIRCUIT
UNISONICTECHNOLOGIESCO.,LTD
3 of 5
www.unisonic.com.tw
QW-R102-094.b
ABSOLUTE MAXIMUM RATING
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage
(VPP, VIN, EN, ADJ, VOUT, SSC, SET1, SET2)
VIN
7
V
Power Dissipation
PD
Internally limited
W
Junction Temperature
TJ
150
°C
Storage Temperature Range
TSTG
-65≤TJ≤+150
°C
Operation Conditions
VIN Voltage
VIN
1.0~5.5
V
VPP Voltage
VPP
3~5.5
V
(VPP≥VIN for normal operation) Temperature Range
TOPR
-40 ≤ TA ≤ +85
°C
Note: 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 CHARACTERISTICS
PARAMETER
SYMBOL
RATINGS
UNIT
Junction To Ambient
θJA
143
°C/W
ELECTRICAL CHARACTERISTICS
VPP=5V, VIN =3.3V, VEN=VPP, IOUT =10mA, CIN=10µF, COUT =10µF, TA=TJ=25°C
The device is not guaranteed to function outside its operating conditions. Parameters with MIN and/ of MAX limits
are 100% tested at +25°C unless otherwise specified.
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
VIN
Input Voltage Range
VIN
VIN>VO
1.0
5.5
V
VPP
VPP Voltage Range
VPP
VPP>VO+1V and VPP>3V
3
5.5
V
VOUT
Output Voltage
VO
Externally set voltage
VIN=VO+0.5V
VO(S): VO Voltage setting
VO(S)-3% VO(S) VO(S)+3%
V
Line Regulation
VIN=( VO+0.5V)~5V, IOUT=100mA
△
(VOUT △
/VIN*VOUT
0.8
%/v
Ripple ejection
f=1kHz
70
dB
Load Regulation
10mA≤IO≤1A
0.6
%
Dropout Voltage
VD
IO=1A, VO=1.8V
300
mV
Short Circuit Current
500
mA
VOUT Pull Low Resistance
VEN=0V
60
Ω
VOUT
CSS: Capacitor on SSC pin
VIN=VO+1V, IOUT=1A, CSS=3nF
Time period when VSSC rises from
0~0.8V
0.6
mS
Soft Start Time
TSS
CSS: Capacitor on SSC pin
VIN=VO+1V, IOUT=1A, CSS=0nF
Time period when VSSC rises from
0~0.8V
0.06
mS



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