US1150 Ver la hoja de datos (PDF) - Unisem
Número de pieza
componentes Descripción
Fabricante
US1150 Datasheet PDF : 5 Pages
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US1150
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin) ........................................................... 7V
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
8 PIN PLASTIC SOIC ( S )
5 PIN PLASTIC TO263 ( M )
TOP VIEW
Vctrl 1
8 Vout
Vin 2
7 Vout
Adj 3
6 Vout
Vsense 4
5 Vout
FRONT VIEW
5
4
3
2
1
Vin
Vctrl
Vout
Adj
Vsense
θJA=55°C/W for 1" Sq pad area θJA=35°C/W for 0.5" square pad
5 PIN PLASTIC POWER FLEX (P)
FRONT VIEW
5
4
3
2
1
Vin
Vctrl
Vout
Adj
Vsense
θJA=35°C/W for 0.5" square pad
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
Reference Voltage
Line Regulation
Load Regulation (note 1)
Dropout Voltage (note 2)
(Vctrl - Vout)
SYM
Vref
TEST CONDITION
MIN
Vctrl=2.75V,Vin=2V,Io=10mA
1.243
Tj=25,Vadj=0V
Vctrl=2.7to12V,Vin=2.05V to 5.5V, 1.237
Io=10mA to 4A,Vadj=0V
Vctrl=2.5Vto7V,Vin=1.75Vto5.5V
,Io=10mA ,Vadj=0V
Vctrl=2.75V,Vin=2.1V,Io=10mA
to 4A,Vadj=0V
Vadj=0V for all conditions below.
Vin=2.05V,Io=1.5A
Vin=2.05V,Io=3A
Vin=2.05V,Io=4A
TYP
1.250
1.250
1.10
MAX
1.257
1.263
3
5
1.15
1.18
1.25
UNITS
V
mV
mV
V
Dropout Voltage (note 2)
(Vin - Vout)
Vadj=0V for all conditions below.
Vctrl=2.75V,Io=1.5A
Vctrl=2.75V,Io=3A
Vctrl=2.75V,Io=4A
0.26 0.38
V
0.50 0.60
0.70 0.85
Current Limit
Minimum Load Current (note 3)
Thermal Regulation
Ripple Rejection
Vctrl=2.75V,Vin=2.05V,
dVo=100mV Vadj=0V
Vctrl=5V,Vin=3.3V,Vadj=0V,
30 mS Pulse
Vctrl=5V,Vin=5V,Io=4A,Vadj=0V
Tj=25,Vripple=1Vpp at 120Hz
4.2
A
5
10
mA
0.01 0.02 %/W
60 70
dB
2-2
Rev. 1.2
10/28/99
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