UTC U584/5/7
LINEAR INTEGRATED CIRCUIT
8A,5A,3A LOW DROPOUT POSITIVE
REGULATORS ADJUSTABLE AND
FIXED
DESCRIPTION
The UTC U584/585/587 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.
1
TO-220
1
TO-263
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 UTC U584.
*Three-terminal adjustable or fixed 3.3V.
1
TO-263-3
1
TO-252
3: INPUT
1: ADJ/GND
2: OUTPUT
BLOCK DIAGRAM
INPUT
SAFE AREA
PROTECTION
CURRENT
LIMITING
OUTPUT
OVER
TEMPERATURE
PROTECTION
VOLTAGE
REGULATION
AMPLIFIER
ADJUST
UTC
UNISONIC TECHNOLOGIES CO., LTD.
1
QW-R102-003,E
UTC U584/5/7
PARAMETER
Input Voltage
Power Dissipation
Operating Junction
Temperature Range
Storage Temperature
Lead Temperature
(Soldering 10 Sec. )
LINEAR INTEGRATED CIRCUIT
SYMBOL
V
IN
P
D
T
J
T
STG
T
LEAD
ABSOLUTE MAXIMUM RATINGS
VALUE
7
Internally Limited
0 to 125
-65
to 150
300
UNIT
V
W
°C
°C
°C
ELECTRICAL CHARACTERISTICS
PARAMETER
Reference Voltage
U584
U585
U587
Output Voltage
U584-3.3
U585-3.3
U587-3.3
Line Regulation (Note 1.2)
U584/5/7
U584/5/7-3.3
Load Regulation (Note 1, 2, 3)
U584/5/7
U584/5/7-3.3
Dropout Voltage
TEST CONDITIONS
1.3V≤(V
IN
-V
OUT
)
≤3V,
10mA≤I
OUT
≤8A
1.3V≤(V
IN
-V
OUT
)
≤3V,
10mA≤I
OUT
≤5A
,
1.3V≤(V
IN
-V
OUT
)
≤3V,
10mA≤I
OUT
≤3A
MIN TYP MAX UNIT
* 1.225 1.25 1.275
V
3.234 3.300 3.366
4.75V≤V
IN
≤6.5V,
10mA≤I
OUT
≤8A
4.75V≤V
IN
≤7V,
10mA≤I
OUT
≤5A
4.75V≤V
IN
≤7V,
10mA≤I
OUT
≤3A
0.1
2.75V≤V
IN
≤7V,
I
OUT
= 10mA
4.75V≤ V
IN
≤7V,
I
OUT
= 0mA
*
V
IN
-V
OUT
=2.5V.Tj=25°C, 10mA<=I
OUT
<=I
FULLLOAD
V
IN
=5V, Tj=25°C, 0mA≤I
OUT
≤
I
FULLLOAD
ΔV
REF
=1%,I
OUT
= I
FULLLOAD
Tj>=25°C
Tj<=25°C
*
V
IN
-V
OUT
=3 V
V
IN
-V
OUT
=3 V
V
IN
-V
OUT
=3 V
1.5V<=(V
IN
-V
OUT
) <=3 V,
10mA<=I
OUT
<=I
FULLLOAD
1.5V<=(V
IN
-V
OUT
) <=3V
V
IN
<=5V
f=120Hz, C
OUT
=25µATant,
V
IN
-V
OUT
=2.5V , I
OUT
= I
FULLLOAD
TA=25°C, 1000Hrs
TA=125°C, 10Hz<=f<=10kHz
8.0
5.0
3.0
8.5
5.5
3.6
55
0.2
2
8
72
0.5
0.03
0.03
0.2
1.0
0.2
V
%
%
1.2
1.2
1.3
1.35
V
V
A
Current Limit (Note 3)
U584
U585
U587
Adjust Pin Current
Adjust Pin Current Change
(Note 3)
Minimum Load Current
Quiescent Circuit Current
Ripple Rejection
Temperature Stability
Long-Term Stability
RMS Output Noise
(% of V
OUT
)
Thermal Resistance Junction to
Case
U584
U587
Thermal Resistance Junction to
A
MBIENT
,
θ
JA
U585
Thermal Resistance Junction to
T
AB
,
θ
JT
U585
120
5
10
13
µA
mA
mA
mA
dB
%
%
%
°C
/W
°C
/W
°C
/W
*
*
60
1.0
1.6
3.0
60
2.7
UTC
UNISONIC TECHNOLOGIES CO., LTD.
2
QW-R102-003,E
UTC U584/5/7
LINEAR INTEGRATED CIRCUIT
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.
Note 2
: Line and load regulation are guaranteed up to the maximum power dissipation (15W for the UTC U584,
10W for the UTC U585). Power dissipation is determined by input / output differential and the output current.
Guaranteed maximum output power will not be available over the full input-output voltage range.
Note 3
: I
FULLLOAD
is defined as the maximum value of output load current as a function of input-to-output voltage.
Output current can be different for different input-to-output voltage.
APPLICATION CIRCUIT (ADJUSTABLE)
VIN
4.74V
3
UTC U584/5/7
1
2 TAB
R1
127
Ω
1%
V
OUT
3.45V
@7.5A
C2
10
µF
TANT
V
REF
I
ADJ
C1
10
µF
R2
221
Ω
1%
REQUIRED FOR STABILITY
V
OUT
=V
REF*
(1+R2/R1)+I
ADJ*
R2
APPLICATION CIRCUIT (3.3V)
VIN>=4.75V
UTC
U584/5/7
10uF
3.3V
8A, 5A, 3A
22uF
UTC
UNISONIC TECHNOLOGIES CO., LTD.
3
QW-R102-003,E
UTC U584/5/7
U584
LINEAR INTEGRATED CIRCUIT
U584
U584
TYPICAL PERFORMANCE CHARACTERISTICS
U585
U585
U585
U587
U587
U587
UTC
UNISONIC TECHNOLOGIES CO., LTD.
4
QW-R102-003,E
UTC U584/5/7
LINEAR INTEGRATED CIRCUIT
U584
U584
U584
U585
U585
U585
UTC
UNISONIC TECHNOLOGIES CO., LTD.
5
QW-R102-003,E
微控制器 MCU
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