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US1260 Fiches technique(PDF) 2 Page - UNISEM

No de pièce US1260
Description  DUAL 6A AND 1A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
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US1260 Fiches technique(HTML) 2 Page - UNISEM

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US1260
3-2
Rev. 1.9
3/22/99
Unless otherwise specified ,these specifications apply over ,Cin=1 uF,Cout=10uF,and Tj=0 to 150
°C.Typical
values refer to Tj=25
°C. Ifl=6A for output #1,and Ifl=1A for output #2. Vfb=Vo for both outputs.Vctrl=Vin=3.3V.
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Vctrl Input Voltage
3.0
V
Reference Voltage
Vref
Io=10mA,Tj=25
°C
1.188 1.200
1.212
V
Io=10mA
1.176
1.200
1.224
Line Regulation
Io=10mA,Vout+1.3V<Vin=Vctrl<7V
0.2
%
Load Regulation (note 1)
10mA<Io<Ifl
0.4
%
Dropout Voltage (output #2)
Io=4A, Vctrl=4.75V , Vin=3.3V
1.0
V
Io=3A, Vctrl=4.75V , Vin=3.3V
0.7
V
(Note 2)
Io=2A, Vctrl=4.75V , Vin=3.3V
0.35
0.5
Dropout Voltage (output #1)
Io=1A, Vctrl=4.75V , Vin=3.3V
0.4
0.6
V
(Note 2)
Io=1A, Vctrl=Vin=4.75V
1.3
Current Limit (output #2)
ICL2
dVo=100mV
6.1
A
Current Limit (output #1)
ICL1
dVo=100mV
1.1
A
Thermal Regulation
30 mS pulse,Io=Ifl
0.01
0.02
%/W
Ripple Rejection
f=120HZ ,Co=25uF Tantalum
Io=0.5*Ifl
70
dB
Feedback Pin Input Current
Ifb
Io=10mA
0.02
uA
Temperature Stability
Io=10mA
0.5
%
Long Term Stability
Ta=125
°C,1000 Hrs
0.3
1
%
RMS Output Noise
Ta=25
°C 10hz<f<10khz
0.003
%Vo
Minimum Load Current(Note 3)
5
mA
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.
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.
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
7 PIN PLASTIC TO220
7 PIN PLASTIC TO263
7 PIN POWER FLEX (P)
θJT =2.7°C/W θJA =60°C/W
θJA =30°C/W for 1"sq pad
θJA =30°C/W for 1"sq pad
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
FRONT VIEW
1
2
3
4
5
6
7
Vctrl
Vfb1
Vfb2
Gnd
Vout2
Vin
Vout1
FRONT VIEW
1
2
3
4
5
6
7
Vctrl
Vfb1
Vfb2
Gnd
Vout2
Vin
Vout1
M7
FRONT VIEW
1
2
3
4
5
6
7
Vctrl
Vfb1
Vfb2
Gnd
Vout2
Vin
Vout1


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