US1050-33CD 반도체 회로 부품 판매점
5A LOW DROPOUT POSITIVE FIXED 3.3V OUTPUT REGULATOR
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 UNISEM |
US1050-33
5A LOW DROPOUT POSITIVE
FIXED 3.3V OUTPUT REGULATOR
FEATURES
Guaranteed < 1.3V Dropout at Full Load
Current
Fast Transient Response
1% Voltage Reference Initial Accuracy
Output Current Limiting
Built-in Thermal Shutdown
APPLICATIONS
Standard 3.3V Chip-Set and Logic Applications
DESCRIPTION
The US1050-33 product is a low dropout three terminal
fixed 3.3V output regulator with minimum of 5A output
current capability. This product is specifically designed
to provide well regulated supply for low voltage IC appli-
cations requiring 3.3V output. The US 1050-33 is guar-
anteed to have <1.3V drop out at full load current
making it ideal to provide well regulated output with sup-
ply voltage as low as 4.6V input.
TYPICAL APPLICATION
5V
C1
330uF
Vin 3
US1050-33 Vout 2
1050-33app1-1.1
Gnd 1
Typical application of US1050-33
3.3V / 5A
C2
330uF
Tj (°C)
0 TO 150
3 PIN PLASTIC
TO220 (T)
US1050-33CT
3 PIN PLASTIC
TO263 (M)
US1050-33CM
2 PIN PLASTIC
POWER FLEX (P)
US1050-33CP
3 PIN PLASTIC
TO252 (D)
US1050-33CD
Rev. 1.1
10/27/00
2-33
US1050-33
ABSOLUTE MAXIMUM RATINGS
Input Voltage (Vin) .................................................................. 7V
Power Dissipation ............................................ Internally Limited
Storage Temperature Range .............................. -65°C TO 150°C
Operating Junction Temperature Range .................. 0°C TO 150°C
PACKAGE INFORMATION
3 PIN PLASTIC TO220 ( T )
Tab is
Vout
FRONT VIEW
3
2
1
Vin
Vout
Gnd
3 PIN PLASTIC TO263 ( M ) 2 PIN PLASTIC POWER FLEX ( P ) 3 PIN PLASTIC TO252 ( D )
FRONT VIEW
3
Tab is
Vout
2
Vin
Vout
FRONT VIEW
Tab is
Vout
3
4
Vin
FRONT VIEW
3
Tab is 4
Vout
Vin
1 Gnd
1 Adj
1 Gnd
θJT=2.7°C/W θJA=60°C/W θJA=35°C/W for 1" Square pad θJA=70°C/W for 1" Square pad θJA=70°C/W for 0.5" Sq pad
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
Output Voltage
Line Regulation
Load Regulation (note 1)
Dropout Voltage
(note 2)
Current Limit
Minimum Load Current
(note 3)
Thermal Regulation
Ripple Rejection
Adjust Pin Current Change
Temperature Stability
Long Term Stability
RMS Output Noise
SYM
Vo
TEST CONDITION
Io=10mA,Tj=25°C,Vin=5V
Io=10mA, Vin=5V
Io=10mA,4.7V<Vin<7V
Vin=5V,Vadj=0,10mA<Io<5A
MIN TYP
3.267 3.300
3.234 3.300
MAX
3.330
3.366
0.2
0.4
UNITS
V
%
%
∆VO Note 2 , Io=5A
Vin=5V,dVo=100mV
Vin=5V
1.1 1.3
V
5.1 A
5 10 mA
30 mS PULSE,Vin-Vo=3V,Io=5A
0.01 0.02 %/W
f=120HZ ,Co=25uF Tan
Io=2.5A,Vin-Vo=3V
60 70
dB
Io=10mA,Vin-Vo=1.5V,Tj=25
0.2 5
uA
Vin=5V,Vadj=0V,Io=10mA
0.5 %
Tj=125°C,1000 Hrs
0.3 1
%
Tj=25°C 10hz<f<10khz
0.003
%Vo
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.
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.
2-34
Rev. 1.1
10/27/00
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관련 데이터시트
US1050-33CD
5A LOW DROPOUT POSITIVE FIXED 3.3V OUTPUT REGULATOR - UNISEM
US1050-33CM
5A LOW DROPOUT POSITIVE FIXED 3.3V OUTPUT REGULATOR - UNISEM
US1050-33CP
5A LOW DROPOUT POSITIVE FIXED 3.3V OUTPUT REGULATOR - UNISEM
US1050-33CT
5A LOW DROPOUT POSITIVE FIXED 3.3V OUTPUT REGULATOR - UNISEM