LX8384-XXCDD MICROSEMI [Microsemi Corporation], LX8384-XXCDD Datasheet

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LX8384-XXCDD

Manufacturer Part Number
LX8384-XXCDD
Description
5A Low Dropout Positive Regulators
Manufacturer
MICROSEMI [Microsemi Corporation]
Datasheet
Copyright
Rev. 2.1d, 2001-03-15
A
An Application of the LX8384A for the Pentium P54C Processors Meeting VRE Specification.
positive 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.
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.
*1500µ F
6M V1500G X
Sanyo
M I C R O S E M I
IMPORTANT: For the most current data, consult MICROSEMI’s website:
The LX8384/84A/84B Series ICs are
In addition, on-chip trimming adjusts the
* C apacitors must have < 20m
T otal E S R for the V R E Specification
5V
2000
-25 to 125
+
0 to 125
T
A

IN
( C)
Fixed versions are also

Accuracy
Max Ref
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
LX 8384A
          
2.0%
2.0%
1.0%
2.0%
          
AD J
C O M P A N Y
        
        
Max Dropout
Voltage
1.5V
1.3V
1.3V
1.5V
available and specified in the Available
Options table below.
pin-compatible
regulators, such as the 117 series products,
but they do require input and output
capacitors. A minimum 10µF capacitor is
required on the input and a 15µF or greater
on the output of these new devices for
stability. Although, these capacitors are
generally
designs.
current flows into the load, thereby
increasing efficiency. This feature contrasts
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,
xxC/84B-xxC
commercial range of 0°C to 125°C.
Append the letter “T” to the part number. (i.e. LX8384-xxCPT)
The LX8384/84A/84B Series devices are
The LX8384/84A/84B Series quiescent
O U T
Linfinity Microelectronics Division

DT
   
121
while
0.1%
LX8384A-xxCDT
LX8384B-xxCDT
218
0.1%
LX8384-xxCDT
LX8384-xxIDT
included
Microsemi
Note: Available in Tape & Reel.
http://www.microsemi.com
Plastic TO-252
(D-Pak) 3-Pin
is
with
the
+
specified
in
at 5A
earlier
3.5V
LX8384-xxC/84A-
1500µ F
5x 6M V1500G X
Sanyo
5A Low Dropout Positive Regulators
most
over
3-terminal
regulator
P
LX8384A-xxCP
LX8384B-xxCP
LX8384-xxCP
LX8384-xxIP
the
Plastic TO-220
3-Pin
P
RODUCTION
Table 1 - Available Options













LX8384/84A/84B-00
LX8384/84A/84B-15
LX8384/84A/84B-33
Pentium
High Efficiency Linear
Power Regulators For Switching
Battery Chargers
Constant Current Regulators
Cyrix
AMD-K5™
Three-Terminal Adjustable Or
Fixed Output
Guaranteed < 1.3V Headroom a
5A (LX8384A)
Guaranteed 2.0% Max.
Reference Tolerance (LX8384A)
Guaranteed 1.0% Max.
Reference Tolerance (LX8384B)
0.015% Line Regulation
0.15% Load Regulation
Application
Regulators
Power Supplies
    
    
         
         
         
         
®
6x86™
DD
®
LX8384A-xxCDD
LX8384B-xxCDD
Processor VRE
LX8384-xxCDD
LX8384-xxIDD
Plastic TO-263
3-Pin
     
     
LX8384x-xx
  
  
Adjustable
1.5V
3.3V
Page 1

Related parts for LX8384-XXCDD

LX8384-XXCDD Summary of contents

Page 1

... Regulators  Power Regulators For Switching Power Supplies  Battery Chargers the  Constant Current Regulators ®  Cyrix 6x86™  AMD-K5™ LX8384/84A/84B-00 Adjustable LX8384/84A/84B-15 1.5V LX8384/84A/84B-33 3.3V Table 1 - Available Options Plastic TO-220 Plastic TO-263 DD 3-Pin 3-Pin LX8384-xxCP LX8384-xxCDD LX8384A-xxCP LX8384A-xxCDD LX8384B-xxCP LX8384B-xxCDD LX8384-xxIP LX8384-xxIDD Page 1 ...

Page 2

... C/W MBIENT 2.7°C Therm al Bandgap C ontrol C ircuit C ircuit Microsemi Linfinity Microelectronics Division LX8384x-xx P RODUCTION                     (3- ) ACKAGE PIN (Top View ...

Page 3

... Unless otherwise specified, the following specifications apply over the operating ambient temperature for the LX8384x-xxC with 125 C and the LX8384-xxI with - 5A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient OUT temperature ...

Page 4

... Unless otherwise specified, the following specifications apply over the operating ambient temperature for the LX8384x-xxC with ...

Page 5

... The LX8384/84A/84B Series ICs are easy to use Low- Dropout (LDO) voltage regulators. They have all of the standard self-protection features expected of a voltage regulator: short circuit protection, safe operating area protection and automatic thermal shutdown if the device temperature rises above approximately 165° ...

Page 6

... OUTPUT VOLTAGE The LX8384/84A/84B ICs develop a 1.25V reference voltage between the output and the adjust terminal (See Figure 2). By placing a resistor, R1, between these two terminals, a constant current is caused to flow through R1 and down through R2 to set the overall output voltage ...

Page 7

... DROPOUT(MAX) installed regulator. THERMAL CONSIDERATIONS The LX8384/84A/84B regulators have internal power and thermal limiting circuitry designed to protect each device under overload conditions. For continuous normal load conditions, however, maximum junction temperature ratings must not be exceeded important to give careful consideration to all sources of thermal resistance from junction to ambient ...

Page 8

... F A lum inum capacitor increased without lim it ust be less than <400m FIXE D 3. OUT DROPOUT(MA X) Microsemi Linfinity Microelectronics Division LX8384x-xx P RODUCTION 8384x R 1 121 100µ ...

Page 9

... Dim tin Microsemi Linfinity Microelectronics Division LX8384x-xx P RODUCTION M I ILLIMETERS NCHES MIN MAX MIN MAX 14.22 15.88 0.560 0.625 9.65 10.67 0.380 0.420 3.56 4.83 0.140 0.190 0.51 1.14 0.020 0.045 3.53 4.09 0.139 0.161 2 ...

Page 10

... Microsemi Linfinity Microelectronics Division LX8384x-xx P RODUCTION M I ILLIMETERS NCHES MIN MAX MIN MAX 6.47 6.73 0.255 0.265 5.97 6.23 0.235 0.245 2.16 2.42 0.085 0.095 0.68 0.94 0.027 0.037 0.38 0.64 0.015 0.025 0.63 0.89 0.025 0.035 2 ...

Page 11

... LinFinity reserves the right to change the configuration and performance of the product and to discontinue product at any time. Copyright 2000 Rev. 2.1d, 2001-03-15 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570  5A Low Dropout Positive Regulators Product processing does not Microsemi Linfinity Microelectronics Division LX8384x-xx RODUCTION Page 11 ...

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