MDC_VRK81B100CS MURATA [Murata Manufacturing Co., Ltd.], MDC_VRK81B100CS Datasheet
MDC_VRK81B100CS
Manufacturer Part Number
MDC_VRK81B100CS
Description
Programmable, 100A Single Output DC/DC Converter
Manufacturer
MURATA [Murata Manufacturing Co., Ltd.]
Datasheet
1.MDC_VRK81B100CS.pdf
(4 pages)
FEATURES
DESCRIPTION
VRK81B100CS is designed to meet the fast load
transients required by AMD 64-bit processors
and is fully compliant with the latest AMD64™
processor power specifications. High efficiency of
85% at full load for reduced power dissipation to
simplify system thermal management. Packaged in
a compact design, VRK81B100CS is ideal for use in
a wide variety of server applications.
This product is a direct replacement for
VRK81B080CS.
www.murata-ps.com
Meets AMD K8 requirements
DAC Programmable output voltage
Power good output
Differential remote sense
Remote enable
Supervisory functions
Tri-state output when disabled
Dynamic VID capability
SMBus temperature monitor
Latch off overcurrent
Short circuit protection
www.murata-ps.com/rohs
For full details go to
1. V
2. Output ripple voltage is specified when measured with recommended capacitance at the output of the converter
SELECTION GUIDE
Order Code
VRK81B100CS-1C
INPUT CHARACTERISTICS
Parameter
Input voltage operating range
Under voltage lockout
Maximum input current
No-load input current
Disabled input current
Enable - positive logic
OUTPUT CHARACTERISTICS
Parameter
Voltage set point
Line regulation
Load regulation
Voltage total regulation DC
Ripple & noise
Current operating range
Efficiency
Turn-on time
Recommended bulk output
capacitance
GENERAL CHARACTERISTICS
Parameter
Semiconductor junction
temperature
Material flammability
MTBF
Switching frequency
TEMPERATURE CHARACTERISTICS
Parameter
Storage temperature range
Operating temperature
range
PROTECTION CHARACTERISTICS
Parameter
Output overcurrent
shutdown
Overvoltage Indication,
CBOUT
IN
= 12VDC, T
A
2
= 25ºC, Airflow = 400LFM unless otherwise noted.
Conditions
Turn-on threshold
Turn-off threshold
Hysteresis voltage
Typical: 80A, 1.4VID, V
Max: 80A, 1.55VID, V
Enable state, no load
Disabled state
On state range
Off state range
Conditions
5-Bit DAC controlled
20MHz bandwidth, using
recommended output capacitors
I
I
V
560μF, 4V alum poly
10μF, 1206 X7R ceramic
Conditions
Package rated to 150ºC
UL 94V-0
Calculated (RAC PRISM)
Per phase
Conditions
Non-condensing
See derating graph
Conditions
Latching
V
O
O
IN
OUT
= 100A, VID = 1.325V
= 80A, VID = 1.325V
present: enable to 90% V
Input Voltage
V (NOM.)
1
1
1
1
1
12
Programmable, 100A Single Output DC/DC Converter
Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000
IN
IN
= 12V
= 12V
OUT
Output Voltage
0.8-1.55
V
VID-50mV
0.800
Min.
10.2
Min.
Min.
Min.
Min.
-0.3
100
115
6.5
5.4
0.7
0.8
-40
10
82
83
-5
0
0
VRK81B100CS
MDC_VRK81B100CS.B01 Page 1 of 4
1.303
Current
Output
12.0
Typ.
Typ.
Typ.
Typ.
Typ.
200
300
6.9
6.0
0.9
0.6
8.4
2.1
11
20
84
85
25
100
0
8
A
VID+50mV
Max.
Max.
Max.
Max.
Max.
13.2
1.55
400
100
115
120
7.3
6.6
1.1
0.4
5.0
.
13
50
70
60
5
50
Efficiency
% (Typ.)
85
x10
mVp-p
Units
Units
Units
Units
Units
KHz
mA
mΩ
mS
mV
EA
EA
ºC
ºC
%
V
A
V
A
A
V
V
V
6
Hrs
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MDC_VRK81B100CS Summary of contents
Page 1
... OUT 8 25 Min. Typ. Max. 115 1.303 300 Min. Typ. Max. - Min. Typ. Max. 115 120 2.1 . MDC_VRK81B100CS.B01 Page Efficiency % (Typ.) 85 Units Units V mV mΩ V mVp Units ºC 6 x10 Hrs KHz Units º ...
Page 2
... LFM 500 LFM VID0 V OUT 0 1.550 1 1.525 0 1.500 1 1.475 0 1.450 1 1.425 0 1.400 1 1.375 0 1.350 1 1.325 0 1.300 1 1.275 0 1.250 1 1.225 0 1.200 1 1.175 0 1.150 1 1.125 0 1.100 1 1.075 0 1.050 1 1.025 0 1.000 1 0.975 0 0.950 1 0.925 0 0.900 1 0.875 0 0.850 1 0.825 0 0.800 1 Shutdown MDC_VRK81B100CS.B01 Page ...
Page 3
... CORERB_L CBOUT 1 ADD 0 1 ADD 1 VRMPRES_L +5V ALWAYS V CORE CORE CORE+ DD GND GND GND V CORE CORE CORE CORE CORE CORE+ DD GND GND GND Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_VRK81B100CS.B01 Page ...
Page 4
... Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com © 2008 Murata Power Solutions, Inc. Singapore: Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com VRK81B100CS Weight: 2.08oz (59g) Technical enquiries - email: sales@murata-ps.com, tel: +1 508 339 3000 MDC_VRK81B100CS.B01 Page ...