LX8384B-33CDD资料

K E Y F E AT U R E S
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
TO-220 P Plastic 3-pin
LX8384-xxCP LX8384A-xxCP LX8384B-xxCP LX8384-xxIP
TO-263 DD Plastic 3-pin
LX8384-xxCDD LX8384A-xxCDD LX8384B-xxCDD 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.
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-K5 TM
VIN VOUT ADJ / GND*
P PACKAGE (Top View)
* Pin 1 is GND for fixed voltage versions.
TAB IS V OUT
T H E R M A L D ATA
3
VIN VOUБайду номын сангаас ADJ / GND*
P PACKAGE: THERMAL RESISTANCE-JUNCTION TO TAB, θJT THERMAL RESISTANCE-JUNCTION TO AMBIENT, θ JA DD PACKAGE: THERMAL RESISTANCE-JUNCTION TO TAB, θJT THERMAL RESISTANCE-JUNCTION TO AMBIENT, θ JA 2.7°C/W 60°C/W* 2.7°C/W 60°C/W
IMPORTANT: For the most current data, consult LinFinity's web site: .
PRODUCT HIGHLIGHT
A VA I L A B L E O P T I O N S
Part #
LX8384/84A/84B-00 LX8384/84A/84B-15 LX8384/84A/84B-33
Copyright © 1997 Rev. 1.9 12/97
LINFINITY MICROELECTRONICS INC.
11861 W ESTERN A VENUE, G ARDEN G ROVE, CA. 92841, 714-898-8121, F AX: 714-893-2570
1
元器件交易网
*1500µF
6MV1500GX Sanyo
Other voltage options may be available — Please contact factory for details.
218Ω 0.1%
An application of the LX8384A for the Pentium P54C processors meeting VRE specfication. PA C K A G E O R D E R I N F O R M AT I O N TA (°C) Max. Ref. Max. Dropout Accuracy Voltage 2.0% 0 to 125 -25 to 125 2.0% 1.0% 2.0% 1.5V 1.3V 1.3V 1.5V
元器件交易网
L I N D O C # : 8384
LX8384-xx/8384A-xx/8384B-xx
5 A L OW D ROPOUT P OSITIVE R E G U L AT O R S
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O VA T I O N
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.
PER
PAR T #
Output Voltage
3.5V, 5A R E G U L AT O R
Adjustable 1.5V 3.3V
5V
IN
LX8384A
ADJ
OUT 121Ω 0.1%
3.5V at 5A 1500µF* 5x 6MV1500GX Sanyo must * Capacitors have < 20mΩ Total ESR.
PRODUCT DATABOOK 1996/1997
LX8384-xx/8384A-xx/8384B-xx
5 A L O W D R O P O U T P O S I T I V E R E G U L AT O R S
P
R O D U C T I O N
D
A T A
S
H E E T
A B S O LUT E M AXIM UM R ATINGS
P
R O D U C T I O N
D
A T A
S
H E E T
DESCRIPTION The LX8384/84A/84B Series ICs are 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. 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 3terminal 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.
(Note 1)
PACKAGE PIN OUTS
TAB IS V OUT
3 2 1
Power Dissipation .................................................................................. Internally Limited Input Voltage ................................................................................................................ 10V Input to Output Voltage Differential ........................................................................... 10V Operating Junction Temperature Hermetic (K - Package) ........................................................................................ 150°C Plastic (DD - Package) .......................................................................................... 150°C Storage Temperature Range ...................................................................... -65°C to 150°C Lead Temperature (Soldering, 10 seconds) ............................................................. 300°C