SPX1587U-L-5-0 Exar Corporation, SPX1587U-L-5-0 Datasheet - Page 3
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SPX1587U-L-5-0
Manufacturer Part Number
SPX1587U-L-5-0
Description
3A Low Dropout Voltage Regulator
Manufacturer
Exar Corporation
Datasheet
1.SPX1587AT-L.pdf
(11 pages)
Specifications of SPX1587U-L-5-0
Regulator Topology
Positive Fixed
Voltage - Output
5V
Voltage - Input
Up to 10V
Voltage - Dropout (typical)
1.1V @ 3A
Number Of Regulators
1
Current - Output
3A
Current - Limit (min)
3.2A
Operating Temperature
-40°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220-3
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Note 1: Output temperature coefficient is defined as the worst case voltage change divided by the total temperature range
Note 2: Dropout voltage is defined as the input to output differential at which the output voltage drops 100mV below its
nominal value measured at 1V differential at very low values of programmed output voltage, the minimum input supply
voltage of 2V (2.3V over temperature) must be taken into account.
Note 3: Thermal regulation is defined as the change in output voltage at a time T after a change in power dissipation is
applied. Excluding load or line regulation effect.
Note 4: Adjustable Version Only.
BLOCK DIAGRAM
© 2010 Exar Corporation
Dropout Voltage (note 2)
Minimum Load Current
(note 4)
Quiescent Current
Adjust Pin Current
Current Limit
Thermal Regulation
Ripple Rejection
Long Term Stability
RMS Output Noise
Parameter
Min.
3.2
60
Typ.
1.00
1.05
1.10
0.01
0.03
0.03
50
75
Fig. 2: SPX1587 Block Diagram
4
4
5
Max.
120
1.2
0.1
10
10
3/11
Units
%/W
3
3
mA
mA
µA
µA
dB
%
%
V
A
A
A
L
L
o
o
•
w
w
I
I
I
Fixed Voltage Versions
V
25°C, 30ms pulse
F
125°C, 1000 hours
% of V
OUT
OUT
OUT
D
D
RIPPLE
IN
-V
r
=1A
=2A
=3A
r
o
o
OUT
=120Hz, V
p
OUT
p
=2V
o
o
, 10Hz ≤ f ≤ 10kHz
u
u
t
t
V
V
IN
Conditions
-V
o
o
l
l
OUT
t
t
a
a
=2V, V
g
g
e
e
S
S
R
R
RIPPLE
P
P
e
e
X
X
g
g
=1V
Rev. 2.0.0
u
1
u
1
l
l
5
PP
5
a
a
8
t
8
t
o
o
7
7
r
r