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LR1108-12-AF5-R 数据表(PDF) 4 Page - Unisonic Technologies

部件名 LR1108-12-AF5-R
功能描述  1A FAST ULTRA LOW DROPOUT LINEAR REGULATOR
PDF  6 Pages
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制造商  UTC [Unisonic Technologies]
网页  http://www.utc-ic.com
标志 UTC - Unisonic Technologies

LR1108-12-AF5-R 数据表(HTML) 4 Page - Unisonic Technologies

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LR1108
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
4 of 6
www.unisonic.com.tw
QW-R102-031.B
ABSOLUTE MAXIMUM RATINGS
PARAMETER
SYMBOL
RATINGS
UNIT
Input Voltage (Operating), (Note 10)
2.5~7.0
V
Input Voltage (Survival)
VIN
-0.3~+7.5
V
Shutdown Input Voltage
VIN(SHDN)
-0.3~VIN+0.3
V
Output Voltage (Survival), (Note 4), (Note 5)
VOUT
-0.3~+7.5
V
IOUT (Survival)
Short Circuit Protected
Maximum Voltage for ERROR Pin
VIN+0.3
V
Maximum Operating Current (DC)
1
A
Power Dissipation (Note 2)
PD
Internally Limited
Junction Temperature
TJ
+125
℃
Operating Temperature
TOPR
-40~+125
℃
Storage Temperature
TSTG
-65~+150
℃
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.
ELECTRICAL CHARACTERISTICS
Limits in standard typeface are for TJ = 25°C, and limits in boldface type apply over the full operating temperature
range.
(TJ = 25℃, VIN = VO(NOM) + 1V, IL = 10 mA, COUT = 2.2µF, VSD = VIN-0.3V, unless otherwise specified.)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage Tolerance (Note 6)
VOUT
0 mA ≤ IL ≤ 1A
VOUT +1 ≤ VIN≤ 7.0V
-1.5
-3
0
+1.5
+3
%
Output Voltage Line Regulation (Note 6)
V
△ OUT
VOUT+1V<VIN<7.0V
0.05
%
Output Voltage Load Regulation (Note 6)
V
△ OUT/I
△ OUT 10 mA < IL < 1A
0.04
%
Dropout Voltage (Note 8)
VD
IL = 1A
300
500
mV
IL = 0 mA
200
Ground Pin Current In Normal Operation
Mode
IGND
IL = 1A
300
uA
Peak Output Current
IO(PEAK)
(Note 2)
600
800
mA
SHORT CIRCUIT PROTECTION
Short Circuit Current
ISC
2
A
OVER TEMPERATURE PROTECTION
Shutdown Threshold
TSHDN(THR)
165
℃
Thermal Shutdown Hysteresis
TSHDN(HYS)
10
℃
SHUTDOWN INPUT
Output = High
VIN-0.3
VIN
Shutdown Threshold
VSHDN
Output = Low
0
0.2
V
Turn-off Delay
tD(OFF)
IL = 1A
20
µs
Turn-on Delay
tD(ON)
IL = 1A
25
µs
SD Input Current
ISD
VSD = VIN
1
nA
ERROR FLAG COMPARATOR
ERROR Flag Saturation
VEF(SAT)
ISINK = 100µA
0.02
0.1
V
ERROR Flag Pin Leakage Current
II(LEAK)
1
nA
Threshold
VT
(Note 7)
5
10
16
%
Threshold Hysteresis
VTHR
(Note 7)
2
5
8
%
Flag Reset Delay
tD
1
µs
AC PARAMETERS
VIN = VOUT + 1.5V
COUT=100uF, VOUT = 3.3V
60
Ripple Rejection
PSRR
VIN = VOUT + 0.3V
COUT=100uF, VOUT = 3.3V
40
dB
Output Noise Density
ρn(l/f)
f = 120Hz
0.8
µV
BW = 10Hz – 100kHz
150
Output Noise Voltage
eN
BW = 300Hz – 300kHz
100
µVrms



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