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 )
TOP VIEW
5 PIN PLASTIC TO263 ( M )
FRONT VIEW
5
4
3
2
1
5 PIN PLASTIC POWER FLEX (P)
FRONT VIEW
5
4
3
2
1
Vctrl
Vin
Adj
Vsense
1
2
3
4
8
7
6
5
Vout
Vout
Vout
Vout
Vin
Vctrl
Vout
Adj
Vsense
Vin
Vctrl
Vout
Adj
Vsense
θ
JA
=55°C/W for 1" Sq pad area
θ
JA
=35°C/W for 0.5" square pad
θ
JA
=35°C/W for 0.5" square pad
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
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
Vadj=0V for all conditions below.
Vctrl=2.75V,Io=1.5A
Vctrl=2.75V,Io=3A
Vctrl=2.75V,Io=4A
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
TYP
1.250
1.250
MAX
1.257
1.263
UNITS
V
ELECTRICAL SPECIFICATIONS
Line Regulation
Load Regulation (note 1)
Dropout Voltage (note 2)
(Vctrl - Vout)
3
5
1.15
1.18
1.25
mV
mV
V
1.10
Dropout Voltage (note 2)
(Vin - Vout)
0.26
0.50
0.70
0.38
0.60
0.85
V
Current Limit
Minimum Load Current (note 3)
Thermal Regulation
Ripple Rejection
4.2
5
0.01
70
10
0.02
60
A
mA
%/W
dB
2-2
Rev. 1.2
10/28/99
UNISEM [ UNISEM ]
