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參數資料
| 型號： | 1700A-XX |
| 英文描述： | PENTIUM II VRM MODULE |
| 中文描述： | 奔騰II VRM電源模塊 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 142K |
| 代理商： | 1700A-XX |
D E S C R I P T I O N
K E Y F E AT U R E S
The LXM1700/1700A series of DC/DC
converters are Voltage Regulator
Modules (VRM) which are specifically
designed to meet or exceed the Intel
VRM8.1 DC/DC Converter electrical
specification as well as its mechanical
outline. The LXM1700-xx/1700A-xx is
guaranteed to deliver a maximum
current of at least 14A. These convert-
ers maintain a total tolerance of ±5%
maximum, which includes load and
line regulation, temperature stability,
inital accuracy, load transient and
ripple and noise. One of the main
features of these converters is their
ability to program the output voltage
from 1.8 to 3.5V using a 5-bit word
from the processors, providing
automatic voltage adjustment for each
individual processor. Other features
I
GUARANTEED 14.0A OUTPUT
p
TOTAL OUTPUT TOLERANCE OF LESS
THAN ±5% — Includes: Line & load
regulation, temperature stability, initial
accuracy, load transient and ripple & noise.
p
ADJUSTABLE OUTPUT VOLTAGE USING A
FIVE-BIT WORD (See Table 1)
p
OVER-VOLTAGE DETECTION CROWBARS
THE OUTPUT VOLTAGE IN THE EVENT OF
PASS TRANSISTOR FAILURE - 100%
PROCESSOR PROTECTION (LXM1700-xx)
p
HIGH EFFICIENCY — 85% (TYP.)
p
POWER GOOD SIGNAL INDICATES LOW
OUTPUT VOLTAGE
p
SOFT-START ELIMINATES TURN-ON
OVERSHOOT
p
SHORT-CIRCUIT PROTECTION
p
OUTPUT ENABLE /SHUTDOWN
M O D U L E O R D E R I N F O R M AT I O N
Input
I
MAX
LXM1700-05
LXM1700-12
LXM1700A-05
LXM1700A-12
+5V, +12V
+12V
+5V, +12V
+12V
14.0A
14.0A
14.0A
14.0A
Yes
No
Part #
O.V. Protection Crowbar
include high efficiency, short-circuit
protection, over-voltage protection
(LXM1700-xx only), under-voltage
detection, soft start and logic level
output enable functions.
The LXM1700-05/1700A-05 powers
the processor using the 5V supply as
the input power and 12V for the
control bias. The LXM1700-12/
1700A-12 powers the processor using
only the 12V supply and does not need
a separate voltage for the control bias
(see Block Diagram below). The +5V
or the +12V input configuration is
factory set via simple jumper connec-
tions. The LXM1700-12/1700A-12 is
primarily used for multiple processor
applications, such as quad processor
servers, where 5V supplies may not
have the needed current capability.
B L O C K D I A G R A M
LXM1700-05/1700A-05
IN
A
+5V S
UPPLY
A
PPLICATION
LXM1700-12/1700A-12
IN
A
+12V S
UPPLY
A
PPLICATION
P
E N T I U M
I I V R M M
O D U L E
P
R E L I M I N A R Y
D
A T A
S
H E E T
T
H E
I
N F I N I T E
P
O W E R
O F
I
N N O V A T I O N
Copyright 1997
Rev. 0.4 4/97
F O R F U RT H E R I N F O R M AT I O N C A L L ( 7 1 4 ) 8 9 8 - 8 1 2 1
11861 W
ESTERN
A
VENUE
, G
ARDEN
G
ROVE
, CA. 92841
LXM1700-xx/1700A-xx
1
LIN D
OC
#: 1700
MODULE PHOTO
A P P L I C AT I O N S
I
PENTIUM II PROCESSOR
I
PENTIUM PRO PROCESSOR
I
ADVANCED MICROPROCESSOR SUPPLIES
L
V
CC (VID)
V
SS
PWRGD
VID3
VID2
VID1
VID0
OUTEN
μP
Disable
5V
12V
L
V
CCP (VID)
V
SS
VID0
OUTEN
μP
Disable
12V
5V
IN
12V
IN
12V
IN
UP#
VID4
PWRGD
UP#
VID3
VID2
VID1
VID4
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