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US1175 Fiches technique(PDF) 2 Page - UNISEM

No de pièce US1175
Description  7.5A ULTRA LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
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Fabricant  UNISEM [UNISEM]
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US1175 Fiches technique(HTML) 2 Page - UNISEM

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US1175
2-2
Rev. 1.2
11/29/99
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin)
........................................................... 6V
Control Input Voltage (Vctrl) .................................................. 14V
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
8 PIN PLASTIC SOIC ( S )
5 PIN PLASTIC TO263 ( M )
5 PIN PLASTIC POWER FLEX (P)
θJA=55°C/W for 1" Sq pad area
θJA=35°C/W for 0.5" square pad
θJA=35°C/W for 0.5" square pad
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Unless otherwise specified ,these specifications apply over ,Cin=1uF,Cout=10uF, and Tj=0 to 125
°C.Typical
values refer to Tj=25
°C. Vout=Vsense.
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Reference Voltage
Vref
Vctrl=2.75V,Vin=2V,Io=10mA
1.243
1.250
1.257
V
Tj=25,Vadj=0V
Vctrl=2.7to12V,Vin=2.05V to 5.5V, 1.237
1.250
1.263
Io=10mA to 7.5A,Vadj=0V
Line Regulation
Vctrl=2.5Vto7V,Vin=1.75Vto5.5V
,Io=10mA ,Vadj=0V
0.5
3
mV
Load Regulation (note 1)
Vctrl=2.75V,Vin=2.1V,Io=10mA
to 7.5A,Vadj=0V
2
6
mV
Dropout Voltage (note 2)
Vadj=0V for all conditions below.
(Vctrl - Vout)
Vin=2.05V,Io=1.5A
0.95
V
Vin=2.05V,Io=3A
1.00
Vin=2.05V,Io=5A
1.05
Vin=2.05V,Io=7.5A
1.15
1.30
Dropout Voltage (note 2)
Vadj=0V for all conditions below.
(Vin - Vout)
Vctrl=2.75V,Io=1.5A
0.100
0.130
V
Vctrl=2.75V,Io=3A
0.200
0.260
Vctrl=2.75V,Io=5A
0.330
0.430
Vctrl=2.75V,Io=7.5A
0.500
0.650
Current Limit
Vctrl=2.75V,Vin=2.05V,
dVo=100mV Vadj=0V
7.7
9
A
Minimum Load Current (note 3)
Vctrl=5V,Vin=3.3V,Vadj=0V,
5
10
mA
Thermal Regulation
30 mS Pulse
0.01
0.02
%/W
Ripple Rejection
Vctrl=5V,Vin=5V,Io=3A,Vadj=0V
60
70
dB
Tj=25,Vripple=1Vpp at 120Hz
FRONT VIEW
1
2
3
4
5
Vsense
Adj
Vout
Vctrl
Vin
4
3
2
1
5
6
7
8
TOP VIEW
Vout
Vsense
Adj
Vin
Vctrl
Vout
Vout
Vout
FRONT VIEW
1
2
3
4
5
Vsense
Adj
Vout
Vctrl
Vin


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