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US2075CM Datasheet(PDF) 2 Page - UNISEM

Part # US2075CM
Description  PWM SWITCHER CONTROLLER & 7.5A LOW DROPOUT REGULATOR COMBO
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Manufacturer  UNISEM [UNISEM]
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US2075CM Datasheet(HTML) 2 Page - UNISEM

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US2075
4-2
Rev. 1.2
4/26/98
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
12V Supply Voltage ............................................................. 14V
5V Supply Voltage ..............................................................
7V
LDO Power Dissipation ....................................
Internally Limited
FB Pin Voltage........................................................
-0.3V to 5V
Storage Temperature Range .................................
-65 TO 150
°C
Operating Junction Temperature ............................... O TO 150
°C
PACKAGE INFORMATION
PACKAGE INFORMATION
7 PIN PLASTIC TO220 (T)
7 PIN PLASTIC TO263 (M)
θJT=2.7°C/W θJA=60°C/W
θJA=35°C/W for 1" Square pad
LDO Section
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
Output Voltage
VOUT
Io=0mA
3.400
V
Line Regulation
Io=0mA, 4.75<V5<6V
0.2
%
Load Regulation (note 1)
0A<Io<7.5A
0.5
%
Maximum Output Current
IMAX
dVo=0.995*VOUT
7.5
A
Thermal Regulation
30 mS Pulse,V5=5V
0.01
0.02
%/W
Ripple Rejection
f=120HZ ,Co=25uF Tan
70
dB
Io=1A
Switching Controller Section
PARAMETER
SYM
TEST CONDITION
MIN
TYP
MAX
UNITS
F.B Voltage Initial Accuracy
Vfb
TJ=25
°C
1.237
1.250
1.262
V
F.B Voltage Total Variation
Vfb
Includes Temp & line,4.75 to 5.25V
1.225
1.250
1.275
V
F.B Input Bias Current
Ifb
Vfb=1.25V
-2
+2
uA
Min On Time
Vfb is sq wave with 300 ns on
400
600
800
nS
time and 2 uS off time
Min Off Time
Vfb is sq wave with 300 ns off
400
600
800
nS
time and 2 uS on time
Vhyst pin output-HI
Isource=500uA,Vfb=1.5V
11
V
Vhyst pin output-LO
Isink=500uA,Vfb=1V
1
V
Supply Current
Icc
Vfb=1V
10
mA
Maximum Duty Cycle
Dmax
Vfb=1V
100
%
Minimum Duty Cycle
Dmin
Vfb=1.5V
0
%
Gate Drive Rise/Fall Time
Vgate
Load=IRL3303
70
nS
FRONT VIEW
1
2
3
4
5
6
7
Drv
V12
Vfb
Gnd
Vhyst
Vout
V5
FRONT VIEW
1
2
3
4
5
6
7
Drv
V12
Vfb
Gnd
Vhyst
Vout
V5
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Unless otherwise specified the following specification applies over,V5=5V,V12=12V,and Tj=0 to 125
°C.Low duty
cycle pulse testing are used which keeps junction and case temperatures equal to the ambient temperature.


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