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US1050 Fiches technique(PDF) 2 Page - UNISEM

No de pièce US1050
Description  5A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
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US1050
2-34
Rev. 1.3
10/27/00
Note 1 : Low duty cycle pulse testing with Kelvin con-
nections are required in order to maintain accurate data.
Note 2 : Drop-out voltage is defined as the minimum
differential voltage between Vin and Vout required to main-
tain regulation at Vout. It is measured when the output
voltage drops 1% below its nominal value.
Note 3 : Minimum load current is defined as the mini-
mum current required at the output in order for the out-
put voltage to maintain regulation. Typically the resistor
dividers are selected such that it automatically main-
tains this current.
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin)
..................................................................
7V
Power Dissipation ............................................
Internally Limited
Storage Temperature Range ..............................
-65
°C TO 150°C
Operating Junction Temperature Range .................. 0
°C TO 150°C
PACKAGE INFORMATION
PACKAGE INFORMATION
3 PIN PLASTIC TO220 ( T )
3 PIN PLASTIC TO263 ( M )
2 PIN PLASTIC POWER FLEX ( P ) 3 PIN PLASTIC TO252 ( D )
θJT=2.7°C/W θJA=60°C/W
θJA=35°C/W for 1" Square pad
θJA=70°C/W for 1" Square pad
θJA=70°C/W for 0.5" Sq pad
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Unless otherwise specified ,these specifications apply over ,Cin=1uF,Cout=10uF,and Tj=0 to 150
°C.Typical
values refer to Tj=25
°C.
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Reference Voltage
VREF
Io=10mA,Tj=25
°C,(Vin-Vo)=1.5V 1.243 1.250 1.257
V
Io=10mA, (Vin-Vo)=1.5V
1.237
1.250
1.263
Line Regulation
Io=10mA,1.3V<(Vin-Vo)<7V
0.2
%
Load Regulation (note 1)
Vin=3.3V,Vadj=0,10mA<Io<5A
0.4
%
Dropout Voltage
(note 2)
∆VO
Note 2 , Io=5A
1.1
1.3
V
Current Limit
Vin=3.3V,dVo=100mV
5.1
A
Minimum Load Current
Vin=3.3V,Vadj=0V
5
10
mA
(note 3)
Thermal Regulation
30 mS PULSE,Vin-Vo=3V,Io=5A
0.01
0.02
%/W
Ripple Rejection
f=120HZ ,Co=25uF Tan
Io=2.5A,Vin-Vo=3V
60
70
dB
Adjust Pin Current
IADJ
Io=10mA,Vin-Vo=1.5V,Tj=25
Io=10mA,Vin-Vo=1.5V
55
120
uA
Adjust Pin Current Change
Io=10mA,Vin-Vo=1.5V,Tj=25
0.2
5
uA
Temperature Stability
Vin=3.3V,Vadj=0V,Io=10mA
0.5
%
Long Term Stability
Tj=125
°C,1000 Hrs
0.3
1
%
RMS Output Noise
Tj=25
°C 10hz<f<10khz
0.003
%Vo
1
2
3
FRONT VIEW
Adj
Tab is
Vout
Vin
Vout
1
2
3
FRONT VIEW
Adj
Vout
Vin
Tab is
Vout
1
4
3
FRONT VIEW
Adj
Tab is
Vout
Vin
FRONT VIEW
1
4
3
Tab is
Vout
Adj
Vin


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