Contek U587, U585, U584 Datasheet
U584/5/7 LINEAR INTEGRATED CIRCUIT
1
3~8 AMP 5V TO 3.3V VOLTAGE
CONVERSION REGULATOR
DESCRIPTION
The ContekU584/585/587 voltage regulators are monolithic
integrated circuits, designed for use in applications requiring a
well regulated positive output voltage with +5V input. The
output voltage can be adjustable from 3.8 V down to 1.3V.
FEATURES
*Low dropout performance.
*Adjustable output down to 1.3V.
*Line regulation typically below 0.1%.
*Load regulation typically below 0.1%.
*Output current can be up to 8 A for Contek U584.
TO-220
1
TO-263
1
1: COMMON 2: OUTPUT 3: INPUT
BLOCK DIAGRAM
CURRENT
LIMITING
OVER
TEMPERATURE
PROTECTION
VO LTAG E
REGULATION
AMPLIFIER
SAFE AREA
PROTECTION
INPUT
OUTPUT
ADJUST
Contek
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
U584/5/7 LINEAR INTEGRATED CIRCUIT
2
ABSOLUTE MAXIMUM RATINGS
PARAMETER SYMBOL VALUE UNIT
Input Voltage VIN 7V
Power Dissipation PD Internally Limited W
Operating Junction
Temperature Range
TJ 0 to 125 C
Storage Temperature TSTG -65 to 150 C
Lead Temperature
( Soldering 10 Sec. )
TLEAD 300 C
ELECTRICAL CHARACTERISTICS
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Reference Voltage U584
U585
U587
1.3V<=(V
IN-VOUT)<=3V, 10mA<=IOUT<=8A
1.3V<=(V
IN-VOUT)<=3V, 10mA<=IOUT<=5A ,
1.3V<=(V
IN-VOUT)<=3V, 10mA<=IOUT<=3A
* 1.225
(-2%)
1.25 1.275
(+2%)
V
Line Regulation
(Note 1.2)
U584/5/7 2.75V<=VIN<=7V,IOUT=IFULLLOAD
0.1 0.2 %
Load Regulation
(Note 1, 2, 3)
U584/5/7
V
IN-VOUT=1.3V.Tj=25 C,
10mA<=I
OUT<=IFULLLOAD
*
0.2 1.0 %
Dropout Voltage U584/5/7
VREF=1%,I
OUT=IFULLLOAD
Tj>=25 C
Tj<=25 C
1.2
1.2
1.3
1.35VV
U584 VIN-VOUT =1.3 V * 8.0 8.5 A
Current Limit (Note 3) U585 VIN-VOUT =1.3 V 5.0 5.5 A
U587 VIN-VOUT =1.3 V * 3.0 3.6 A
Adjust Pin Current U584/5/7 55 120
mA
Adjust Pin Current
Change (Note 3)
U584/5/7 1.5V<=(VIN-V OUT) <=3 V,
10mA<=I
OUT<=IFULLLOAD
0.2 5 mA
Minimum Load
Current
U584/5/7 1.5V<=(VIN-VOUT) <=3V, * 2 10 mA
Quiescent Circuit
Current
U584/5/7 VIN<=5V * 8 13 mA
Ripple Rejection U584/5/7
f=120Hz,C
OUT=25mATant, VIN-VOUT =1.3 V ,
I
OUT=IFULLLOAD
60 72 dB
Temperature Stability 0.5 %
Long-Term Stability
TA=25 C,1000Hrs
0.03 1.0 %
RMS Output Noise
(%ofV
OUT )
TA=125 C,10Hz<=f<=10kHz
0.03 %
Thermal Resistance
Junction to Case
U584 1.6
C/W
U585/7 3.0
C/W
The * denotes specifications which apply over the specified operating temperature range.
Note 1: Load and line regulation are measured at a constant junction temperature by low duty cycle pulse testing.
CONTEK
Contek Microelectronics Co.,Ltd.
http://www.contek-ic.com E-mail:sales@contek-ic.com
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