US1010 UNISEM, US1010 Datasheet - Page 2

• Manufacturer Part Number: US1010
• Description: 1A LOW DROPOUT POSITIVE ADJUSTABLE REGULATOR
• Manufacturer: UNISEM

US1010
ABSOLUTE MAXIMUM RATINGS
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin)
Power Dissipation ............................................
Storage Temperature Range .............................. -65 C TO 150 C
Operating Junction Temperature Range .................. 0 C TO 150 C
PACKAGE INFORMATION
PACKAGE INFORMATION
ELECTRICAL SPECIFICATIONS
ELECTRICAL SPECIFICATIONS
Unless otherwise specified, these specifications apply over, Cin=1uF, Cout=10uF, and Tj=0 to 150 C.Typical
values refer to Tj=25 C.
PARAMETER
Reference Voltage
Line Regulation
Load Regulation (note 1)
Dropout Voltage
Current Limit
Minimum Load Current
(note 3)
Thermal Regulation
Ripple Rejection
Adjust Pin Current
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise
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.
2-2
(note 2)
Tab is
2 PIN PLASTIC TO252 ( D )
Vout
JA
=70 C/W for 0.5" Sq pad
4
FRONT VIEW
3
1
..................................................................
Vin
Adj
3 PIN PLASTIC SOT223 ( Y )
JA
Tab is
=90 C/W for 0.4" Sq pad
Vout
SYM
I
V
ADJ
REF
V
O
TOP VIEW
Io=0.5A,Vin-Vo=3V
TEST CONDITION
Io=10mA,Tj=25 C,(Vin-Vo)=1.5V
Io=10mA, (Vin-Vo)=1.5V
Io=10mA,1.3V<(Vin-Vo)<7V
Vin=3.3V,Vadj=0,10mA<Io<1A
Note 2 , Io=1A
Vin=3.3V,dVo=100mV
Vin=3.3V,Vadj=0V
30 mS PULSE,Vin-Vo=3V,Io=1A
f=120HZ ,Co=25uF Tan
Io=10mA,Vin-Vo=1.5V,Tj=25
Io=10mA,Vin-Vo=1.5V
Io=10mA,Vin-Vo=1.5V,Tj=25
Vin=3.3V,Vadj=0V,Io=10mA
Tj=125 C,1000 Hrs
Tj=25 C 10hz<f<10khz
3
2
1
Vin
Vout
Adj
Internally Limited
2 PIN PLASTIC PFLEX ( P )
JA
Tab is
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.
Vout
=70 C/W for 0.5" Sq pad
4
FRONT VIEW
7V
3
1
Vin
Adj
1.237
1.243 1.250
MIN
1.1
60
8 PIN PLASTIC SOIC (S)
JA
1.250
Vin
NC
NC
Adj
TYP
0.003
=55 C/W for 1" Sq pad
0.01
70
1.1
55
0.2
0.5
0.3
5
1
2
3
4
TOP VIEW
MAX
1.257
1.263
120
0.02
0.4
1.3
0.2
10
5
1
8
7
6
5
Vout
Vout
Vout
Vout
UNITS
%Vo
%/W
mA
dB
uA
uA
%
%
%
V
A
%
10/30/00
Rev. 1.3
V