SPX1587U-L-5-0 Exar Corporation, SPX1587U-L-5-0 Datasheet - Page 5

• Manufacturer Part Number: SPX1587U-L-5-0
• Description: 3A Low Dropout Voltage Regulator
• Manufacturer: Exar Corporation

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

TYPICAL PERFORMANCE CHARACTERISTICS
All data taken at V
BOM from Application Information section of this datasheet.
APPLICATION INFORMATION
O
To ensure the stability of the SPX1587, an
output capacitor of at least 10μF (ceramic or
tantalum) or 22μF (aluminum) is required. The
value may change based on the application
requirements
temperature range. The value of ESR can vary
based on the type of capacitor used in the
applications
recommended value for ESR is 0.5Ω or less. A
larger value of output capacitance (up to
100μF)
response.
© 2010 Exar Corporation
UTPUT
Fig. 4: Line Regulation for SPX1587U-3-3
C
can
APACITOR
Fig. 6: V
to
IN
improve
V
of
= V
IN
=4.0V, I
OUT
guarantee
OUT
I
OUT
the
versus Temperature
+ 1.5V, T
=10mA
OUT
the
=10mA
output
A
load
stability.
= 25°C, C
load
transient
IN
= C
The
or
OUT
5/11
=10µF, I
S
The SPX1587 die is attached to the heatsink
lead which exits opposite the input, output,
and ground pins.
T
The SPX1587 features the internal thermal
limiting to protect the device during overload
conditions. Special care needs to be taken
during continuous load conditions such that
the maximum junction temperature does not
exceed 125°C. Thermal protection is activated
at >179°C and deactivated at <165 °C.
The
components in the application can affect the
3
3
HERMAL
OLDERING
A
A
OUT
L
L
=10mA unless otherwise specified - Schematic and
o
o
thermal
w
w
Fig. 5: V
Fig. 7: V
C
D
D
HARACTERISTICS
M
r
r
V
V
o
o
IN
IN
ETHODS
=2.5V, I
=5.0V, I
p
p
OUT
OUT
o
o
versus Temperature
versus Temperature
interaction
u
u
t
t
OUT
OUT
V
V
=10mA
=10mA
o
o
l
l
t
t
a
a
g
g
e
e
S
S
from
R
R
P
P
e
e
X
X
g
g
Rev. 2.0.0
u
1
u
1
l
l
5
5
a
a
other
8
t
8
t
o
o
7
7
r
r