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LX8384B-15CDD fiches techniques PDF

Microsemi Corporation - 5A LOW DROPOUT POSITIVE REGULATORS

Numéro de référence LX8384B-15CDD
Description 5A LOW DROPOUT POSITIVE REGULATORS
Fabricant Microsemi Corporation 
Logo Microsemi Corporation 





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LX8384B-15CDD fiche technique
T H E I N F I N I T E P O W E R O F I N N O VAT I O N
L I N DO C # : 8384
LX8384-xx/8384A-xx/8384B-xx
5A LOW DROPOUT POSITIVE REGULATORS
PRODUCTION DATA SHEET
DESCRIPTION
The LX8384/84A/84B Series ICs are posi-
tive regulators designed to provide 5A
output current. These regulators yield
higher efficiency than currently available
devices with all internal circuitry designed
to operate down to a 1V input-to-output
differential. In each of these products,
the dropout voltage is fully specified as
a function of load current. Dropout is
guaranteed at a maximum of 1.3V
(8384A) and 1.5V (8384) at maximum
output current, decreasing at lower load
currents.
In addition, on-chip trimming adjusts
the reference voltage tolerance to 1%
maximum at room temperature and 2%
maximum over the 0 to 125°C range
for the LX8384A, making this ideal for
the Pentium P54C-VRE specification.
The LX8384B offers 0.8% tolerance at
room temperature and 1.0% maximum
over line, load and temperature.
Fixed versions are also available and
specified in the Available Options table
below.
The LX8384/84A/84B Series devices
are pin-compatible with earlier 3-
terminal regulators, such as the 117 series
products. While a 10µF output capacitor
is required on both input and output of
these new devices, this capacitor is
generally included in most regulator
designs.
The LX8384/84A/84B Series quiescent
current flows into the load, thereby
increasing efficiency. This feature
constrasts with PNP regulators where up
to 10% of the output current is wasted as
quiescent current. The LX8384-xxI is
specified over the industrial temperature
range of -25°C to 125°C, while the
LX8384-xxC/84A-xxC/84B-xxC is
specified over the commercial range of
0°C to 125°C.
IMPORTANT: For the most current data, consult LinFinity's web site: http://www.linfinity.com.
PRODUCT HIGHLIGHT
3.5V, 5A R E G U L AT O R
5V
*1500µF
6MV1500GX
Sanyo
IN LX8384A OUT
121
ADJ 0.1%
3.5V at 5A
1500µF*
5x 6MV1500GX
Sanyo
*218
0.1%
Capacitors must
have < 20mTotal ESR.
KEY FEATURES
s THREE-TERMINAL ADJUSTABLE OR FIXED
OUTPUT
s GUARANTEED < 1.3V HEADROOM AT 5A
(LX8384A-xx)
s GUARANTEED 2.0% MAX. REFERENCE
TOLERANCE (LX8384A-xx)
s GUARANTEED 1.0% MAX. REFERENCE
TOLERANCE (LX8384B-xx)
s OUTPUT CURRENT OF 5A MINIMUM
p 0.015% LINE REGULATION
p 0.15% LOAD REGULATION
A P P L I C AT I O N S
s PENTIUM® PROCESSOR VRE APPLICATIONS
s HIGH EFFICIENCY LINEAR REGULATORS
s POST REGULATORS FOR SWITCHING POWER
SUPPLIES
s BATTERY CHARGERS
s CONSTANT CURRENT REGULATORS
s CYRIX® 6x86TM
s AMD-K5TM
AVAILABLE O PTIONS PER PAR T #
Part #
Output
Voltage
LX8384/84A/84B-00 Adjustable
LX8384/84A/84B-15
1.5V
LX8384/84A/84B-33
3.3V
Other voltage options may be available —
Please contact factory for details.
An application of the LX8384A for the Pentium P54C processors meeting VRE specfication.
Copyright © 1997
Rev. 1.9 12/97
TA (°C)
PACKAGE ORDER INFORMATION
Max. Ref.
Accuracy
Max. Dropout
Voltage
P
Plastic TO-220
3-pin
DD
Plastic
3-pin
TO-263
2.0%
1.5V
LX8384-xxCP
LX8384-xxCDD
0 to 125
2.0%
1.0%
1.3V
1.3V
LX8384A-xxCP
LX8384B-xxCP
LX8384A-xxCDD
LX8384B-xxCDD
-25 to 125
2.0%
1.5V
LX8384-xxIP
LX8384-xxIDD
Note: All surface-mount packages are available in Tape & Reel, append the letter "T" to part number.
(i.e. LX8384A-xxCDDT) "xx" refers to output voltage, please see table above.
LINFINITY MICROELECTRONICS INC.
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841, 714-898-8121, FAX: 714-893-2570
1

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