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LX8382A-33CV

Part # LX8382A-33CV
Description IC REG LDO 3.3V 10A TO247-3
Category RECTIFIER
Availability In Stock
Qty 14
Qty Price
1 - 2 $7.51242
3 - 5 $5.97579
6 - 8 $5.63432
9 - 11 $5.23593
12 + $4.66681
Manufacturer Available Qty
Linfinity Microelectronics Inc
Date Code: 9914
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

DESCRIPTION KEY FEATURES
■ THREE-TERMINAL ADJUSTABLE OR FIXED
OUTPUT VOLTAGE
■ GUARANTEED < 1.4V HEADROOM AT 10A
(LX8382)
■ GUARANTEED < 1.2V HEADROOM AT 10A
(LX8382A)
■ OUTPUT CURRENT OF 10A MINIMUM
p 0.015% LINE REGULATION
p 0.15% LOAD REGULATION
■ EVALUATION BOARD AVAILABLE:
REQUEST LXE9001 EVALUATION KIT
The LX8382/8382A series ICs are
positive regulators designed to provide
10A output current. All internal
circuitry is designed to operate down
to a 1V input-to-output differential, so
the LX8382/82A can operate with
greater efficiency than previously
available devices. The dropout voltage
for each product is fully specified as a
function of load current. Dropout is
guaranteed at a maximum of 1.4V
for the LX8382 and 1.2V for the
LX8382A at maximum output current,
decreasing at lower load currents.
Fixed versions are also available and
specified in the Available Options table
below. The LX8382/82A have 1%
initial voltage reference accuracy and
2% over line, load and temperature.
The LX8382/82A 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 LX8382/82A series quiescent
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
LX8382/82A-xxC is specified over the
commercial range of 0°C to +125°C.
10A L
OW
D
ROPOUT
P
OSITIVE
R
EGULATORS
P RODUCTION DATA SHEET
THE INFINITE POWER OF INNOVATION
Copyright © 1997
Rev. 1.0 8/97
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841
LX8382-xx/8382A-xx
LIN DOC #:
8382
1
APPLICATIONS
■ PENTIUM
®
PROCESSOR APPLICATIONS
■ POST REGULATORS FOR SWITCHING
POWER SUPPLIES
■ BATTERY CHARGERS
■ CONSTANT CURRENT REGULATORS
■ CYRIX
®
6x86
TM
■ AMD-K6
TM
■ HIGH-CURRENT MICROPROCESSORS
PACKAGE ORDER INFORMATION
T
A
(°C)
Plastic TO-220
3-pin
P
Plastic TO-247
3-terminal
V
0 to 125
1.4V LX8382-xxCP LX8382-xxCV
1.2V LX8382A-xxCP LX8382A-xxCV
Application of the LX8382 for a high-current microprocessor (e.g. AMD-K6)
with less than 130mV dynamic response to a 7.5A load transient.
PRODUCT HIGHLIGHT
LX8382-xx
178
Ω
1%
1%
3.1V at 10
A
V
IN
≥
4.75V
OUT
IN
ADJ
1500µF
6.3V
6MV1500GX
from Sanyo
2x 330µF, 6.3V
Oscon SA type
from Sanyo
-or-
3x 1500µF, 6.3V
6MV1500GX
from Sanyo
121Ω
3.3V, 10A REGULATOR
Dropout
Voltage
FOR FURTHER INFORMATION CALL (714) 898-8121
LX8382/8382A-00 Adjustable
LX8382/8382A-33 3.3V
Part #
Output
Voltage
AVAILABLE OPTIONS PER PART #
Other voltage options may be available —
Please contact factory for details.
"xx" refers to output voltage, please see table above.
10A L
OW
D
ROPOUT
P
OSITIVE
R
EGULATORS
LX8382-xx
PRODUCT DATABOOK 1996/1997
Copyright © 1997
Rev. 1.0 8/97
2
P
RODUCTION DATA SHEET
ABSOLUTE MAXIMUM RATINGS (Note 1)
Power Dissipation .................................................................................. Internally Limited
Input Voltage................................................................................................................ 10V
Input to Output Voltage Differential ........................................................................... 10V
Maximum Output Current ........................................................................................... 10A
Operating Junction Temperature
Plastic (P & V Packages) ....................................................................................... 150°C
Storage Temperature Range ...................................................................... -65°C to 150°C
Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C
PACKAGE PIN OUTS
Note 1. Exceeding these ratings could cause damage to the device. All voltages are with respect
to Ground. Currents are positive into, negative out of the specified terminal.
V
IN
V
OUT
ADJ / GND*
3
2
1
P PACKAGE:
THERMAL RESISTANCE-JUNCTION TO TAB,
θθ
θθ
θ
JT
2.7°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθ
θθ
θ
JA
60°C/W
V PACKAGE:
THERMAL RESISTANCE-JUNCTION TO TAB,
θθ
θθ
θ
JT
1.6°C/W
THERMAL RESISTANCE-JUNCTION TO AMBIENT,
θθ
θθ
θ
JA
35°C/W
Junction Temperature Calculation: T
J
= T
A
+ (P
D
x θ
JA
).
The θ
JA
numbers are guidelines for the thermal performance of the device/pc-board system.
All of the above assume no ambient airflow.
THERMAL DATA
V
IN
V
OUT
ADJ / GND*
3
2
1
V PACKAGE
(Top View)
* Pin 1 is GND for fixed voltage versions.
BLOCK DIAGRAM
Thermal
Limit Circuit
Control
Circuit
Bandgap
Circuit
Output
Circuit
Bias
Circuit
V
OU
T
V
IN
SOA Protection
Circuit
Current
Limit Circuit
ADJ or
GND*
TAB IS V
OUT
TAB ON REVERSE SIDE IS V
OUT
P PACKAGE
(Top View)
* Pin 1 is GND for fixed voltage versions.
* This pin GND for fixed voltage versions.
10A L
OW
D
ROPOUT
P
OSITIVE
R
EGULATORS
LX8382-xx
PRODUCT DATABOOK 1996/1997
3
Copyright © 1997
Rev. 1.0 8/97
P RODUCTION DATA SHEET
Reference Voltage (Note 4) V
REF
I
OUT
= 10mA, T
A
= 25°C
10mA ≤ I
OUT
≤ I
OUT (MAX)
, 1.5V ≤ (V
IN
- V
OUT
), V
IN
≤ 10V, P ≤ P
MAX
Line Regulation (Note 2) ∆V
REF
(V
IN
) 1.5V ≤ (V
IN
- V
OUT
), V
IN
≤ 7V
Load Regulation (Note 2) ∆V
REF
V
OUT
≥ V
REF
, V
IN
- V
OUT
= 3V, 10mA ≤ I
OUT
≤ 10A, T
A
= 25°C
(I
OUT
)
V
IN
- V
OUT
= 3V, 10mA ≤ I
OUT
≤ 10A
Thermal Regulation
∆V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
Ripple Rejection (Note 3) V
OUT
= 5V, f =120Hz, C
OUT
= 100µf Tantalum, V
IN
= 6.5V
C
ADJ
= 10µF, T
A
= 25°C, I
OUT
= 10A
Adjust Pin Current I
ADJ
Adjust Pin Current Change (Note 4) ∆ I
ADJ
10mA ≤ I
OUT
≤ I
OUT (MAX)
, 1.5V ≤ (V
IN
- V
OUT
), V
IN
≤ 10V
Dropout Voltage LX8382-00 ∆V ∆V
REF
= 1%, I
OUT
= 10A
LX8382A-00 ∆V
REF
= 1%, I
OUT
= 10A
Minimum Load Current I
OUT (MIN)
V
IN
≤ 10V
Maximum Output Current I
OUT (MAX)
(V
IN
- V
OUT
) ≤ 7V
Temperature Stability (Note 3) ∆V
OUT
(T)
Long Term Stability (Note 3) ∆V
OUT
(t) T
A
= 125°C, 1000 hours
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
T
A
= 25°C, 10Hz ≤ f ≤ 10kHz
ELECTRICAL CHARACTERISTICS
(Unless otherwise specified, these specifications apply over the operating ambient temperatures for the LX8382/8382A-xxC with 0°C ≤ T
A
≤ 125°C;
V
IN
- V
OUT
= 3V; I
OUT
= 10A. Low duty cycle pulse testing techniques are used which maintains junction and case temperatures equal to the ambient
temperature.)
Parameter
Symbol
Test Conditions Units
LX8382-00
Min. Typ. Max.
1.238 1.250 1.262 V
1.225 1.250 1.270 V
0.015 0.2 %
0.15 0.4 %
0.3 0.5 %
0.01 0.02 %/W
65 83 dB
55 100 µA
0.2 5 µA
1.2 1.4 V
1.1 1.2 V
210mA
10 12 A
0.25 %
0.3 1 %
0.003 %
Note 2. Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to
heating effects are covered under the specification for thermal regulation.
Note 3. These parameters, although guaranteed, are not tested in production.
Note 4. See Maximum Output Current Section above.
Parameter
Symbol
Test Conditions Units
LX8382-33
Min. Typ. Max.
Output Voltage (Note 4) V
OUT
V
IN
= 5V, I
OUT
= 0mA, T
A
= 25°C
4.75V ≤ V
IN
≤ 10V, 0mA ≤ I
OUT
≤ 10A, P ≤ P
MAX
Line Regulation (Note 2) ∆V
OUT
(V
IN
) 4.75V ≤ V
IN
≤ 7V
Load Regulation (Note 2)
∆V
OUT
(I
OUT
)
V
IN
= 5V, 0mA ≤ I
OUT
≤ I
OUT (MAX)
Thermal Regulation
∆V
OUT
(Pwr)
T
A
= 25°C, 20ms pulse
Ripple Rejection (Note 3) C
OUT
= 100µF (Tantalum), I
OUT
= 10A
Quiescent Current I
Q
0mA ≤ I
OUT
≤ I
OUT (MAX)
, 4.75V ≤ V
IN
≤ 10V
Dropout Voltage LX8382-33 ∆V ∆V
OUT
= 1%, I
OUT
≤ I
OUT (MAX)
, V
IN
≤ 7V
LX8382A-33 ∆V
OUT
= 1%, I
OUT
≤ I
OUT (MAX)
, V
IN
≤ 7V
Maximum Output Current I
OUT (MAX)
V
IN
≤ 7V
Temperature Stability (Note 3) ∆V
OUT
(T)
Long Term Stability (Note 3) ∆V
OUT
(t) T
A
= 125°C, 1000 hours
RMS Output Noise (% of V
OUT
) (Note 3) V
OUT (RMS)
T
A
= 25°C, 10Hz ≤ f ≤ 10kHz
3.267 3.3 3.333 V
3.235 3.3 3.365 V
16mV
515mV
0.01 0.02 % / W
60 83 dB
410mA
1.4 V
1.2 V
10 12 A
0.25 1 %
0.3 %
0.003 %
LX8382-00 (Adjustable)
LX8382-33 (3.3V Fixed)
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