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LR3965G-XX-S08-T Datasheet(PDF) 6 Page - Unisonic Technologies

Part # LR3965G-XX-S08-T
Description  1.5A LOW DROPOUT LINEAR REGULATOR
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Manufacturer  UTC [Unisonic Technologies]
Direct Link  http://www.utc-ic.com
Logo UTC - Unisonic Technologies

LR3965G-XX-S08-T Datasheet(HTML) 6 Page - Unisonic Technologies

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LR3965
CMOS IC
UNISONICTECHNOLOGIESCO.,LTD
6 of 10
www.unisonic.com.tw
QW-R102-037.P
ELECTRICAL CHARACTERISTICS
(TA= 25°C, VIN = VOUT + 1V or VIN =2.25V whichever is greater, CIN = 68µF, COUT =33µF, unless otherwise specified)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Input Voltage
VIN
Note1
6
V
Output Voltage Accuracy
(Preset Mode)
VOUT
TA=25°С , IOUT= 1mA ~1.5A
-2
2
%
TA=0~85°С, IOUT= 1mA~1.5A
-3
3
%
Maximum Output Current
IOUT
1.5
A
Short-Circuit Current Limit
ILIMIT
VOUT=0V
2.5
A
Ground Pin Current
IGND
IOUT = 0mA
200
µA
IOUT= 1mA to 1.5A
250
µA
Dropout Voltage (Note 2)
VD
IOUT=1.5A
VOUT(NOM)<=1.8V
1000
1050
mV
1.8V<VOUT(NOM)
550
Line Regulation (Note 3)
OUT
IN
OUT
V
×
ΔV
ΔV
VIN=VOUT+VD~6V
0.08
0.55
%/V
Load Regulation (Note 3, 4)
ΔVOUT
VIN=VOUT+VD, IOUT=10mA~1.5A
0.25
0.5
%
Output Voltage Noise
eN
f=10Hz to1MHz, COUT=33μF
300
µVRMS
Shutdown Supply Current
IOFF
GND
=
SHDN
0.01
5
µA
Shutdown Threshold
VIH
1.6
V
VIL
0.6
V
Thermal Shutdown Temperature
TSHDN
170
°С
Thermal Shutdown Hysteresis
DTSHDN
20
°С
ADJ Voltage
VREF
Measured on ADJ, IOUT =10mA
0.774
0.8
0.826
V
ADJ Mode Threshold
80
mV
Adjustable Output Voltage
0.8
5
V
POK Output Low Voltage
VOL
Sinking 2mA
5
50
mV
Operating Voltage Range for
Valid POK Output
Sinking 100µA
1.0
5.5
V
POK Output High Leakage
Current
VPOK=5.5V
100
nA
POK Threshold
Rising edge, referred to VOUT(NOM)
90
93
96
%
Note 1: The minimum operating value for VIN is equal to either [VOUT(NOM)+VD] or 2.25V, whichever is greater
2: Dropout voltage is defined as the voltage from the input to output when output is 2% below the nominal
value.
3: Output voltage line regulation is defined as the change in output voltage from the nominal value resulting
from a change in the input line voltage. Output voltage load regulation is defined as the change in output
voltage from the nominal value as the load current increases from no load to full load.
4: Regulation is measured at constant junction temperature by using a 20ms current pulse. Devices are tested
for load regulation in the load range from 10mA to 1.5A


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