us1260 ETC-unknow, us1260 Datasheet - Page 2

• Manufacturer Part Number: us1260
• Description: Dual Dropout Positive Adjustable Regulator
• Manufacturer: ETC-unknow

US1260
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin)
Power Dissipation
Storage Temperature Range ................................
Operating Junction Temperature Range ...................... 0 C TO 150 C
PACKAGE INFORMATION
PACKAGE INFORMATION
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
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.
3-2
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
Vctrl Input Voltage
Reference Voltage
Line Regulation
Load Regulation (note 1)
Dropout Voltage (output #2)
(Note 2)
Dropout Voltage (output #1)
(Note 2)
Current Limit (output #2)
Current Limit (output #1)
Thermal Regulation
Ripple Rejection
Feedback Pin Input Current
Temperature Stability
Long Term Stability
RMS Output Noise
Minimum Load Current(Note 3)
JT
7 PIN PLASTIC TO220
=2.7 C/W
FRONT VIEW
JA
7
6
5
4
3
2
1
=60 C/W
............................................
.............................................................
Vout1
Vout2
Vfb2
Vctrl
Vin
Gnd
Vfb1
SYM
I
I
Ifb
Vref
CL2
CL1
7 PIN PLASTIC TO263
JA
=30 C/W for 1"sq pad
FRONT VIEW
TEST CONDITION
Io=10mA,Tj=25 C
Io=10mA
Io=10mA,Vout+1.3V<Vin=Vctrl<7V
10mA<Io<Ifl
Io=4A, Vctrl=4.75V , Vin=3.3V
Io=3A, Vctrl=4.75V , Vin=3.3V
Io=2A, Vctrl=4.75V , Vin=3.3V
Io=1A, Vctrl=4.75V , Vin=3.3V
Io=1A, Vctrl=Vin=4.75V
dVo=100mV
dVo=100mV
30 mS pulse,Io=Ifl
f=120HZ ,Co=25uF Tantalum
Io=10mA
Io=10mA
Ta=125 C,1000 Hrs
Ta=25 C 10hz<f<10khz
Io=0.5*Ifl
M7
7
6
5
4
3
2
1
Internally Limited
-65 C TO 150 C
Vout1
Vin
Vout2
Gnd
Vfb2
Vfb1
Vctrl
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.
7 PIN POWER FLEX (P)
JA
7V
=30 C/W for 1"sq pad
FRONT VIEW
1.176
1.188 1.200
MIN
3.0
6.1
1.1
7
6
5
4
3
2
1
Vout1
Vin
Vout2
Gnd
Vfb2
Vfb1
Vctrl
1.200
TYP
0.35
0.4
0.003
0.2
0.4
0.01
0.02
0.5
0.3
70
5
MAX
1.212
1.224
1.0
0.7
0.5
0.02
0.6
1.3
1
UNITS
%Vo
%/W
dB
uA
mA
%
%
V
V
V
V
V
A
A
%
%
Rev. 1.9
3/22/99