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

no-image

SPX1587U-L-5-0

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

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
Company:
Part Number:
SPX1587U-L-5-0
Quantity:
2 285
September 2010
GENERAL DESCRIPTION
The SPX1587 is a low power positive-voltage
regulator designed to satisfy moderate power
requirements with a cost effective, small
footprint solution.
This device is an excellent choice for use in
battery-powered
computers. The SPX1587 features very low
quiescent current and a low dropout voltage of
1.1V
decreases, quiescent current flows into the
load,
available in adjustable or fixed 1.5V, 2.5V,
3.3V and 5.0V output voltages.
The SPX1587 is offered in several 3-pin
surface mount packages: TO-252, TO-220 and
TO-263. An output capacitor of 10μF ceramic
or tantalum provides unconditional stability.
FUNCTIONAL DIAGRAM
Exar Corporation
48720 Kato Road, Fremont CA 94538, USA
at
increasing
a
full
applications
load.
efficiency.
As
Fig. 1: SPX1587 Functional Diagram (Adjustable version)
output
and
SPX1587
portable
current
is
APPLICATIONS
FEATURES
3
• Desktop PC's Servers
• Powering VGA and Sound Cards
• Adjustable Power Supplies
• Portable Instrumentation
• Guaranteed 3A Output Current
• Three Terminal Adjustable or Fixed
• Low Quiescent Current
• Low Dropout Voltage: 1.1V at 3A
• Line Regulation: 0.1%
• Load Regulation: 0.1%
• Stable with 10uF Ceramic Capacitor
• Over Current and Thermal Protection
• Similar to Industry Standard
• RoHS Compliant Lead Free 3-Pin
3
A
A
1.5V, 2.5V, 3.3V and 5.0V
LT1085/LT1585
TO-220, TO-252 and TO-263 Packages
Tel. +1 510 668-7000 – Fax. +1 510 668-7001
L
L
o
o
w
w
D
D
r
r
o
o
p
p
o
o
u
u
t
t
V
V
o
o
l
l
t
t
a
a
g
g
e
e
S
S
www.exar.com
R
R
P
P
e
e
X
X
g
g
Rev. 2.0.0
u
1
u
1
l
l
5
5
a
a
8
t
8
t
o
o
7
7
r
r

Related parts for SPX1587U-L-5-0

SPX1587U-L-5-0 Summary of contents

Page 1

... The SPX1587 is offered in several 3-pin surface mount packages: TO-252, TO-220 and TO-263. An output capacitor of 10μF ceramic or tantalum provides unconditional stability. FUNCTIONAL DIAGRAM Fig. 1: SPX1587 Functional Diagram (Adjustable version) Exar Corporation 48720 Kato Road, Fremont CA 94538, USA ...

Page 2

... All Voltage Options 1.238 Reference Voltage SPX1587A 1.225 1.225 Reference Voltage SPX1587 1.212 Output Voltage Temperature Stability – SPX1587A Output Voltage Temperature Stability – SPX1587 Line Regulation Load Regulation © 2010 Exar Corporation OPERATING RATINGS Junction Temperature Range .................... -40°C to 125°C Thermal Resistance TO-220 θ ...

Page 3

... 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 Typ. ...

Page 4

... SPX1587T-L-1-5 -40°C≤T ≤+125°C J SPX1587T-L-1-5/TR SPX1587T-L-5-0 -40°C≤T ≤+125°C J SPX1587T-L-5-0/TR SPX1587U-L-3-3 -40°C≤T ≤+125°C J SPX1587U-L-5-0 -40°C≤T ≤+125°C J SPX1587AR-L -40°C≤T ≤+125°C J SPX1587AR-L/TR SPX1587AT-L -40°C≤T ≤+125°C J SPX1587AT-L/TR SPX1587AT-L-2-5 -40° ...

Page 5

... TYPICAL PERFORMANCE CHARACTERISTICS All data taken 1.5V OUT BOM from Application Information section of this datasheet. Fig. 4: Line Regulation for SPX1587U-3-3 I =10mA OUT Fig versus Temperature OUT V =4.0V, I =10mA IN OUT APPLICATION INFORMATION O C UTPUT APACITOR To ensure the stability of the SPX1587, an output capacitor of at least 10μF (ceramic or tantalum) or 22μ ...

Page 6

... Where C = value of the capacitor in Farads (select an equal or larger standard value ripple frequency value of resistor R1 in Ohms. 1 © 2010 Exar Corporation ADJ-bypass capacitor is used, the amplitude independent of the output voltage ADJ- bypass capacitor is not used, the output ripple will be proportional to the ratio of the output ...

Page 7

... Fig. 8: Ripple Rejection V =3.3V, V =1.8V(adj OUT Fig. 10: Typical Adjustable Regulator Fig. 12: 5V Regulator With Shutdown © 2010 Exar Corporation =200mA LOAD Fig. 13: Recommended Connections for Best Results 7/ Fig. 9: Current Source Fig. 11: Improving Ripple Rejection Rev. 2.0.0 ...

Page 8

... PACKAGE SPECIFICATION 3-P TO263 IN © 2010 Exar Corporation 8/ Rev. 2.0.0 ...

Page 9

... TO220 IN © 2010 Exar Corporation 9/ Rev. 2.0.0 ...

Page 10

... TO252 IN © 2010 Exar Corporation 10/ Rev. 2.0.0 ...

Page 11

... While the information in this publication has been carefully checked; no responsibility, however, is assumed for inaccuracies. EXAR Corporation does not recommend the use of any of its products in life support applications where the failure or malfunction of the product can reasonably be expected to cause failure of the life support system or to significantly affect its safety or effectiveness. Products are not authorized for use in such applications unless EXAR Corporation receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized ...

Related keywords