LXM1700-05 [MICROSEMI]
PENTIUM II VRM MODULE; 奔腾II VRM模块
| 型号： | LXM1700-05 |
| 厂家： | 
Microsemi |
| 描述： | PENTIUM II VRM MODULE |
| 文件： | 总4页 (文件大小：144K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LIN DOC #: 1700
LXM1700-xx/1700A-xx
®
P E N T I U M
I I V R M M O D U L E
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
P R E L I M I N A R Y D A T A S H E E T
DESCRIPTION
KEY FEATURES
■ GUARANTEED 14.0A OUTPUT
p TOTAL OUTPUT TOLERANCE OF LESS
The LXM1700/1700A series of DC/DC
converters are Voltage Regulator
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.
THAN ±±5 ꢀ ꢁIncludes LꢂId ꢃ cꢄou
rdglcotꢂꢄI, tdmpdrotlrd etobꢂcꢂty, ꢂIꢂtꢂoc
onnlrony, cꢄou troIeꢂdIt oIu rꢂppcd ꢃ Iꢄꢂed.
p ADJUSTABLE OUTPUT VOLTAGE USꢁNG A
FꢁVE-BꢁT WORD (Sdd Tobcd 1)
p OVER-VOLTAGE DETECTꢁON CROWBARS
THE OUTPUT VOLTAGE ꢁN THE EVENT OF
PASS TRANSꢁSTOR FAꢁLURE - 1005
PROCESSOR PROTECTꢁON (LXM1700-xx)
p HꢁGH EFFꢁCꢁENCY ꢀ 8±5 (TYP.)
p POWER GOOD SꢁGNAL ꢁNDꢁCATES LOW
OUTPUT VOLTAGE
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
p SOFT-START ELꢁMꢁNATES TURN-ON
OVERSHOOT
p SHORT-CꢁRCUꢁT PROTECTꢁON
p OUTPUT ENABLE /SHUTDOWN
APPLICATIONS
automatic voltage adjustment for each
individual processor. Other features
■ PENTꢁUM ꢁꢁ PROCESSOR
■ PENTꢁUM PRO PROCESSOR
■ ADVANCED MꢁCROPROCESSOR SUPPLꢁES
MODULE PHOTO
BLOCK DIAGRAM
5V 12V
12V
5VIN 12VIN
VCC
12VIN
VCCP
VSS
(VID)
(VID)
VSS
UP#
UP#
PWRGD
PWRGD
µP
µP
VID4
VID3
VID2
VID1
VID0
VID4
VID3
VID2
VID1
VID0
Disable
Disable
OUTEN
OUTEN
LXM1700-05/1700A-05
IN A +5V SUPPLY APPLICATION
LXM1700-12/1700A-12
IN A +12V SUPPLY APPLICATION
MODULE ORDER INFORMATION
Part #
Input
IMAX
O.V. Protection Crowbar
LXM1700-05
LXM1700-12
LXM1700A-05
LXM1700A-12
+5V, +12V
+12V
+5V, +12V
+12V
14.0A
14.0A
14.0A
14.0A
Yes
No
F O R F U R T 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
Copyright © 1997
Rev. 0.4 4/97
1
11861 WESTERN AVENUE, GARDEN GROVE, CA. 92841
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
LXM1700-xx/1700A-xx
®
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
ELECTRICAL CHARACTERISTICS
LXM1700-xx/1700A-xx
Parameter
Symbol
Test Conditions
Units
Min.
Typ.
Max.
Input Voltage Range
+5V
VIN
4.75
11.4
2.945
5
12
3.1
±±.6
15
1
5.25
12.6
3.255
V
V
V
+12V
Total Output Voltage Tolerance
Includes: Initial Accuracy
Load Regulation
VO
3.1V Set Point
IO = ±.5A, TA = 25°C
IO = ±.5A to 14.±A
±.95VIN to 1.±5VIN
1± to 6±°C
IO = ±.5A to 14.±A, VIN = 5V
IO = 5A
%
mV
mV
mV
mV
mV
A
Line Regulation
Temp. Stability
Load Transient
Output Ripple & Noise
Output Current
16
95
12
Maximum
Minimum
IO
VO = 3.1V
14.±
±
A
Power Good Threshold
Power Good Output LO Voltage
Output Enable
VTHPG
RLOPG
OUTEN
VOL
±.93VSET
V
V
±.4
±.8
1±
ISINK = 5mA
V
V
LO Level Input Voltage
HI Level Input Voltage
Turn-on Response
IOL = 1mA
IOH = 1mA
VOH
2
TR
± to 99% of VO after V reaches 9±%
ms
%
%
V
IN
8±
8±
3.41
85
85
3.57
2
Efficiency
LXM17±±-±5/17±±A-±5
LXM17±±-12/17±±A-12
LXM17±±-xx
Eff
IO = 14.±A
IO = 14.±A
VO = 3.1V
VO = ±V
3.72
6±
Over-Voltage Threshold
VOV
ISC
TA
A
Average Short-Circuit Current
Ambient Temperature
Required Air Flow
±
1±±
°C
LFM
IO = 14.±A
Table 1 - Voltage Identification Code
Processor Pins
Processor Pins
VCC (VID)
VCC (VID)
(VDC)
0 = Connected to VSS , 1 = Open or pull-up to VIN
0 = Connected to VSS , 1 = Open or pull-up to VIN
VID4
VID3
VID2
VID1
VID0
(VDC)
VID4
VID3
VID2
VID1
VID0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
*
*
*
*
*
*
*
*
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0
0
0
0
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
No CPU
2.1
2.2
2.3
2.4
2.5
2.6
2.7
2.8
2.9
3.0
3.1
3.2
3.3
3.4
3.5
*
*
1.80
1.85
1.90
1.95
2.00
2.05
* Level reserved for future requirements; VRM8.1 output shall be disabled for these VID codes.
Copyright © 1997
Rev. 0.4 4/97
2
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
LXM1700-xx/1700A-xx
I I V R M M O D U L E
®
P E N T I U M
P R E L I M I N A R Y D A T A S H E E T
CONNECTOR PIN-OUTS AND DESCRIPTIONS
Pin # Ref. Desig. Description
Pin # Ref. Desig. Description
A1
A2
A3
5V
5V Input Power (not needed for LXM17±±-12)
5V Input Power (not needed for LXM17±±-12)
5V Input Power (not needed for LXM17±±-12)
12V Input Power
B1
B2
B3
B4
B5
5V
5V Input Power (not needed for LXM17±±-12)
5V Input Power (not needed for LXM17±±-12)
This pin is reserved for future applications
12V Input Power
A TTL input indicates the presence of an
upgrade processor. LOW = Upgrade processor
A TTL input that disables output when it
switches to LO state
IN
IN
5V
5V
IN
Reserved
IN
5V
IN
A4
12V
IN
12V
UP #
IN
A5
A6
Reserved
ISHARE
VID±
VID2
VID4
VCC (VID)
VSS
This pin is reserved for future applications
Consult Factory
A7
A8
A9
Bit ± of the 5-bit input (see Table 1)
Bit 2 of the 5-bit input (see Table 1)
Bit 4 of the 5-bit input (see Table 1)
Output voltage to microprocessor
Output voltage return
B6
OUTEN
B7
B8
B9
VID1
VID3
PWRGD
Bit 1 of the 5-bit input (see Table 1)
Bit 3 of the 5-bit input (see Table 1)
An open collector output that switches LO
when output is below the specified range
Output voltage return
Output voltage to microprocessor
Output voltage return
Output voltage to microprocessor
Output voltage return
A1±
A11
A12
A13
A14
A15
A16
A17
A18
A19
A2±
VCC (VID)
VSS
VCC (VID)
VSS
VCC (VID)
VSS
VCC (VID)
VSS
Output voltage to microprocessor
Output voltage return
Output voltage to microprocessor
Output voltage return
Output voltage to microprocessor
Output voltage return
B1±
B11
B12
B13
B14
B15
B16
B17
B18
B19
B2±
VSS
VCC (VID)
VSS
VCC (VID)
VSS
VCC (VID)
VSS
VCC (VID)
VSS
VCC (VID)
VSS
Output voltage to microprocessor
Output voltage return
Output voltage to microprocessor
Output voltage return
VCC (VID)
Output voltage to microprocessor
Output voltage to microprocessor
Output voltage return
Output voltage to microprocessor
Output voltage return
MODULE DIMENSIONS
3.10 (78.74)
0.188 (4.78)
2.725 (69.22)
1.00
(25.4)
0.30 (7.62) Max.
0.26 (6.60) Min.
TOP VIEW
1.50
0.15 (3.81) Typical
(38.1)
Power
Board
Connector
0.065 (1.65) Ref
0.42 (10.67) Typical
Power Board
Component Area
FRONT
VIEW
0.80
(20.32)
0.062 0.008
(1.58 0.20)
Connector
B20
B1
(Facing Connector)
A20
A1
Note: All dimensions in inches (mm).
Copyright © 1997
Rev. 0.4 4/97
3
P R O D U C T D A T A B O O K 1 9 9 6 / 1 9 9 7
LXM1700-xx/1700A-xx
®
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
APPLICATION INFORMATION
CTRL
DC
INPUT INPUT
3.3V
VID0
VID1
VID2
VID3
VID4
UP#
VCC (VID)
PENTIUM
PRO
PROCESSOR
GND
GND
3.3V
4.7K
DISABLE (LO)
ENABLE (HI or Open)
PGOOD
VID Pins
OUTEN
0.1µf
LXM1700/1700A
PART #
DC INPUT
CTRL INPUT
LXM1700-0±/1700A-0±
LXM1700-12/1700A-12
+±V
+12V
+12V
N.C.
FIGURE 1. — TYPICAL APPLICATION OF THE LXM17±±-xx/17±±A-xx
Note: 10k pull-up resistors are optional and needed only in cases of noise suppression or long leads.
Pentium is a registered trademark of Intel Corporation.
Copyright © 1997
Rev. 0.4 4/97
4
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