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参数资料
| 型号： | LX8580A-00CP |
| 厂商： | MICROSEMI CORP-ANALOG MIXED SIGNAL GROUP |
| 元件分类： | Adjustable Positive Single Output LDO Regulator |
| 英文描述： | ADJUSTABLE POSITIVE LDO REGULATOR, 1.3 V DROPOUT, PSFM5 |
| 封装： | PLASTIC, TO-220, 5 PIN |
| 文件页数： | 1/9页 |
| 文件大小： | 138K |
| 代理商： | LX8580A-00CP |
Microsemi
Integrated Products Division
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
Page 1
Copyright
2001
Rev. 1.4b, 2005-05-04
WWW
.Microse
m
i
.CO
M
LX8580A
7.5A Very Low Dropout Positive Regulator
PRODUCTION DATA SHEET
TM
DESCRI PTI O N
The
LX8580A
is
a
high-
performance, very low dropout voltage
regulator,
designed
for
use
with
advanced
microprocessors,
micro
controllers,
or
video
graphics
controllers. This product can be used
with separate voltage supplies for the
control and power sections, allowing a
power regulation dropout voltage as
low as 100mV @ 1.5A. In AGP bus
systems requiring regulation of 3.3V
to 2.85V @ 3A, the LX8580A has a
max dropout of 250mV making it an
ideal power supply solution for today’s
graphics applications.
The LX8580A can also be used in a
single voltage supply configuration
with
a
dropout
performance
similar to that of the LX8584 (1.3V @
7.5A).
The LX8580A is supplied in a five-
terminal TO-220, TO-263, or Linfinity’s
S-PAK packages, which allows the
implementation
of
remote
(Kelvin)
voltage
sensing.
This
sensing
compensates
for
output
voltage
variations due to load changes and
resistive voltage drops in connectors and
board traces.
Typical load regulation
measured at the sense pin is less that
1mV for a load current step of 7mA to
7.5A.
The LX8580A is ideal for generating a
secondary 2V-2.85V low voltage supply
on a motherboard where a 3.3V supply
is already available.
IMPORTANT: For the most current data, consult MICROSEMI’s website: http://www.microsemi.com
KEY FEATUR ES
Low Dropout, 650mV at 7.5A
Output Current in Dual Supply
Mode
Fast Transient Response
Remote Sensing
1mV Load Regulation
Adjustable Output
APPLICATIONS/BENEFITS
Microprocessor/Micro controller
Supplies
3.3V to 2.85V Voltage
Conversion
High-Current Regulators
Post Regulation for Switching
Power Supplies
PRODUCT H I GHLIGHT
V
CTR L ≥ V OU T + 1.3V M a x
V
OUT
V
PW R ≥ V OU T + V DR OPOUT
LX8580A
V
PW R
V
CT RL
4
1
3
2
5
ADJUST
SENSE
OUTPUT
R
1
R
2
R
L
2
1
2
1
R
I
R
V
ADJ
REF
OUT
×
+
+
=
PACKAGE ORDER INFO
P
Plastic TO-220
5-Pin
DF
S-PAK
5-pin
DD
Plastic TO-263
5-PIN
TA (
°C)
DROPOUT
VOLTAGE
RoHS Compliant
Transition DC: 0515
0 to 125
0.1V – 0.7V
LX8580A-00CP
LX8580A-00CDF
LX8580A-00CDD
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8580A-00CDD-TR)
LL
XX
88
55
88
00
AA
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