MAPC-104 PC/104-Plus
Series
Non-Isolated, DC/DC Converters
3.3, 5.1 & 12.4, 46W Mobile Applications
FEATURES
46 Watts for Mobile Access Router to
IP/Networks
PC/104-Plus compatible/stackable, power-
ing Cisco system cards
9 to 32V input range, supporting both
12V and 24V vehicle batteries
Reverse input voltage protection
Automotive transient protection
Efficiency to 92.5% @ full load
No derating to +85°C, 100 lfm
Independently regulated +3.3V, +5.1V
and +12V outputs
Power up/down sequencing
Low 25mVp-p ripple/noise
Power good LED and external signal
Compact 3.775” × 3.55” × 0.6” package,
standard PC/104-plus pinout
Stable no-load condition
Thermal shutdown with warning
Fully I/O protected
UL/IEC/EN60950-1 certification pending
Typical unit
PRODUCT OVERVIEW
Murata Power Solutions’ MAPC-104 non-isolated,
triple output DC/DC converter is designed to
power the Cisco 3200 Mobile Access Router and
is compliant to PC/104-Plus specifications. The
equipment ideally suites integration into public
safety, defense, homeland security and commercial
transportation vehicles, whether on land, in water
or air, and is employed for powering secure data,
voice and video communications across multiple
wireless networks.
The MAPC-104 is a high performance, compact
and rugged power supply which operates in the
harshest conditions, withstanding input transient
voltages according to SAE J1455 and J1211. It
converts the vehicle’s standard battery voltage of
12V or 24V (V
IN
range from 9 to 32 Volts) to three
fully regulated outputs of 3.3V @ 6A, 5.1V @ 6.3A
and 12V @ 100mA up to a total output power of
46 Watts. Taking full advantage of a synchronous-
rectifier, buck/boost topology, MAPC-104’s boast
outstanding efficiency of up to 92.5%, enabling
full-power operation to ambient temperatures as
high as +85°C with 100 lfm air flow.
The compact 3.775” x 3.55” x 0.60” (95.9 x
90.2 x 15.2mm) open frame, triple output DC/DC
power card is mechanically and electrically compli-
ant to PC/104-plus specifications. Operating with
the Cisco designed system cards, the MAPC-104
is considered part of the host, which requires the
3.3V (but no –5V/–12V) supply provided.
Assembled using fully automated, SMT-on-pcb
techniques, MAPC-104s provide stable no-load
operation, excellent line and load regulation
(±1% max.), quick step response (200μsec), and
low output ripple/noise (25mVp-p).
All devices feature full I/O fault protection
including: input overvoltage and undervoltage
shutdown, power up/down sequencing, output
overvoltage, output current limiting, short-circuit
protection, power good (LED indicator and external
signal), overtemperature warning and thermal
shutdown.
All models are certified to IEC/EN/UL60950-1
safety standards. Selected models include RoHS
compliance.
Performance Specifications
Output
Model
MAPC-104
Output 1
Output 2
Output 3
V
OUT
(Volts)
3.3
5.1
12
I
OUT
(Amps)
Nom.
5
5.46
0.07
Max.
6
6.3
0.1
R/N (mVp-p)
Typ.
25
25
20
Max.
35
50
35
Regulation (Max.)
Line
±1%
±1%
±1%
Load
±1%
±1%
±1%
Input
V
IN
(Volts)
Nom.
12
24
Range
9-32
9-32
I
IN
(mA/A)
35/4
35/4
Efficiency
Min.
91%
89.5%
Typ.
92.5%
91%
Package/
Pinout
C46
See pages 2, 3
for Pinout
Typical at T
A
= +25°C under nominal line voltage and nominal-load conditions, unless noted.
Ripple/Noise (R/N) is tested/specified over a 20MHz bandwidth. All models are specified
with an external 0.1μF multi-layer ceramic capacitor installed across each output pin.
Devices have no minimum-load requirements and will regulate under no-load conditions.
Regulation specifications describe the output-voltage deviation as the line voltage or load
is varied from its midpoint value to either extreme.
Nominal line voltage, no-load/full-load conditions.
For full details go to
www.murata-ps.com/rohs
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_MAPC-104.A06
Page 1 of 7
MAPC-104 PC/104-Plus
Series
Non-Isolated, DC/DC Converters
3.3, 5.1 & 12.4, 46W Mobile Applications
MECHANICAL SPECIFICATIONS
Case C46
ORDERING GUIDE & PART NUMBER STRUCTURE
Model Number
MAPC-104
MAPC-104-5V
Auxiliary Power
Connector (P2)
Not installed
Installed
MAPC-104
-
5V
-
C
PC/104-Triple
Output Power
Converter
Auxiliary Power
Connector (P2)
Blank = Not installed
5V = P2 is installed
RoHS Hazardous
Substance Compliance
Y
= RoHS-5 (with lead)
C
= RoHS-6 (no lead)
Dimensions are in inches (mm)
5 Volt Auxiliary Power Connector, P2 (Optional)
Figure 1. MAPC-104 Input Power Head
Pin
1
2
3
4
IPH Mating connector: Molex 5557 (39-01-4040)
Assignment
Functional Description
OT_Warn Out
Overtemperature Warning
Pwr_LED_Drive Out
External Power Good LED Driver
Input Ground
V
IN
–
Positive Input
V
IN
+
TOP VIEW
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_MAPC-104.A06
Page 2 of 7
MAPC-104 PC/104-Plus
Series
Non-Isolated, DC/DC Converters
3.3, 5.1 & 12.4, 46W Mobile Applications
Figure 2. MAPC-104 (PC/104-plus) Bus Signal Assignments
J3/P3
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
A
GND
VI/O
AD05
C/BE0*
GND
AD11
AD14
+3.3V
SERR*
GND
STOP*
+3.3V
FRAME*
GND
AD18
AD21
+3.3V
IDSEL0
AD24
GND
AD29
+5.1V
REQ0*
GND
GNT1*
+5.1V
CLK2
GND
+12V
NA (–12V)
B
Reserved
AD02
GND
AD07
AD09
VI/O
AD13
C/BE1*
GND
PERR*
+3.3V
TRDY*
GND
AD16
+3.3V
AD20
AD23
GND
C/BE3*
AD26
+5.1V
AD30
GND
REQ2*
VI/O
CLK0
+5.1V
INTD*
INTA*
Reserved
C
+5.1V
AD01
AD04
GND
AD08
AD10
GND
AD15
SB0*
+3.3V
LOCK*
GND
IRDY*
+3.3V
AD17
GND
AD22
IDSEL1
VI/O
AD25
AD28
GND
REQ1*
+5.1V
GNT2*
GND
CLK3
+5.1V
INTB*
Reserved
D
AD00
+5.1V
AD03
AD06
GND
M66EN
AD12
+3.3V
PAR
SDONE
GND
DEVSEL*
+3.3V
C/BE2*
GND
AD19
+3.3V
IDSEL2
IDSEL3
GND
AD27
AD31
VI/O
GNT0*
GND
CLK1
GND
RST*
INTC*
3.3V KEY
Pin
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
J2/P2
D
GND
MEMCS16*
IOCS16*
IRQ10
IRQ11
IRQ12
IRQ15
IRQ14
DACK0*
DRQ0
DACK5*
DRQ5
DACK6*
DRQ6
DACK7*
DRQ7
+5.1V
MASTER*
GND
GND
C
GND
SBHE*
LA23
LA22
LS21
LS20
LS19
LA18
LA17
MEMR*
MEMW*
SD8
SD9
SD10
SD11
SD12
SD13
SD14
SD15
KEY
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
Figure 3. MAPC-104 (PC/104-Reference) Bus Signal Assignments
J1/P1
A
IOCHCK*
D7
D6
D5
D4
D3
D2
D1
D0
IOCHRDY
AEN
A19
A18
A17
A16
A15
A14
A13
A12
A11
A10
A9
A8
A7
A6
A5
A4
A3
A2
A1
A0
GND
B
GND
RSTDRV
+5.1V
IRQ9
NA (–5V)
DRQ2
NA (–12V)
ENDXFR*
+12V
KEY
SMEMW*
SMEMR*
IOW*
IOR*
DACK3*
DRQ3
DACK1*
DRQ1
REFRESH*
SYSCLK
IRQ7
IRQ6
IRQ5
IRQ4
IRQ3
DACK2*
TC
BALE
+5.1V
OSC
GND
GND
The shaded area denotes power or ground signals.
The KEY pins are to guarantee proper module installation:
J3/P3, pin A1 is electrically connected to GND for shielding
J3/P3, pin D30 is removed and the female side is plugged for 3.3V I/O
J2/P2, pin C19 is keyed, pin is removed and the female side is plugged
J1/P1, pin B10 is keyed, pin is removed and the female side is plugged
J3/P3, pin A30 and J1/P1, pins B5 and B7 are not used. Pin assignments for –5V and –12V are for reference only.
Auxiliary 5V Power Connector, P2
Specifications
(typical unless noted)
+5 Vdc at 1 Amp maximum
Power Output
Power Characteristics
See MAPC-104 Specifications
P2 Header Type
AMP/Tyco Electronics 640455-2
Contact Dimensions
Two 0.025" square posts, 0.3" long, 0.10"
spacing on centers. See drawings.
Contact Material
Tin plating over copper alloy
Contact Assembly Force
3 lbs. (13N)
Single-row, 2-position IDC on 0.10" spacing
Mating Connector
Environmental
Compatible with host MAPC-104 system
The contacts are rated at 5 Amps 250Vac. However, whatever current is drawn
must be
summed
with current powering the PC-104 system.
A suggested mating connector is AMP/Tyco Electronics MTA-100 Series,
part number 647000-2. See also the CST-100 Series.
For the MAPC-104-5V model version, spare +5 Vdc power may be taken from the
P2 connector which is adjacent to the pin 1 end of the J1 connector (see drawings).
Be aware that this power is generated on the MAPC-104 and therefore is in
addition to whatever 5V current is used by the host PC-104 system. All power
characteristics (regulation, tempco, ripple, etc.) are derived from the MAPC-104.
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
www.murata-ps.com
MDC_MAPC-104.A06
Page 3 of 7
MAPC-104 PC/104-Plus
Series
Performance/Functional Specifications
Typical @ T
A
= +25°C under nominal line voltage and full-load conditions unless noted.
Input
Non-Isolated, DC/DC Converters
3.3, 5.1 & 12.4, 46W Mobile Applications
All models are tested and specified with a single, external, 0.1μF, multi-layer ceramic
output capacitor on each output and no external input capacitors, unless otherwise noted.
All models will effectively regulate under no-load conditions (with perhaps a slight increase
in output ripple/noise).
See Technical Notes/Performance Curves for additional explanations and details.
Input Ripple Current is tested/specified over a 5-20MHz bandwidth with an external 33μF
input capacitor and a simulated source impedance of 220μF and 12μH. See I/O Filtering,
Input Ripple Current and Output Noise for details.
The Current-Limit-Inception point is the output current level at which the converter’s
power-limiting circuitry drops the output voltage 3% from its initial value. See Output
Current Limiting and Short-Circuit Protection for more details.
See Dynamic Load Response for detailed results including switching frequencies.
For Start-Up-Time specifications, output settling time is defined as the output voltage
having reached ±1% of its final value and the load current having reached at least 80% of
its final value.
MTBF is calculated using TELCORDIA SR-332 Method 1 Case 3, Issue 1, ground fixed,
+30°C ambient air and full-load conditions.
All models are fully operational and meet all published specifications, including “cold start,”
at –40°C.
The highly unlikely, simultaneous failure of several specific on-board components could
result in the MAPC-104’s input voltage appearing at its output, despite the unit’s output
overvoltage protection mechanisms. In this rare situation, the Power Good signal (IPH pin
2, Pwr_LED_Drive) will be deactivated and systems monitoring Power Good will eventually
shut down. If you are using an MAPC-104 to power a load that must be protected against
any and all possible overvoltages, no matter how rare, you will have to provide the protec-
tion external to the MAPC-104. Please contact MPS for recommendations.
Input Voltage Range
Transient Voltage Protection
Overvoltage Shutdown
Overvoltage Protection
Start-Up Threshold
Undervoltage Shutdown
Input Current
Input Reflected Ripple Current
Internal Filter Type
Reverse-Polarity Protection
9–32 Volts (12V or 24V battery)
125V/100ms (30kVA)
32–36 Volts (34V typical)
48V/5 minutes
9–10 Volts (9.4V typical)
7–9 Volts (8.2V typical)
See Performance Specifications
45mVp-p
Pi
Yes (external fuse mandatory)
Output
Minimum Loading Per Output
Maximum Capacitive Load
V
OUT
Accuracy
(50% load)
Temperature Coefficient
Ripple/Noise
(20MHz BW)
Line/Load Regulation
Efficiency
Current Limit Inception
(97% V
OUT
,
each other
output @ 0 Amps
Short Circuit Current
(Zener)
Overvoltage Protection
No load
2000μF (+3.3V)
1000μF (+5.1V)
500μF (+12V)
±3% maximum
±0.02%/°C
See Performance Specifications
See Performance Specifications
See Performance Specifications
7-9 Amps (+3.3V)
8.5-11 Amps (+5.1V)
0.2-0.5 Amps (+12V)
2.65 Amps (+3.3V)
3.24 Amps (+5.1V)
0.12 Amps (+12V)
3.9V (+3.3V)
6V (+5.1V)
13V (+12V)
See Tech Notes
(LED and external Signal)
Absolute Maximum Ratings
Input Voltage:
Continuous
Up to 5 minutes maximum
Transient
Input Reverse-Polarity Protection
Output Current
36 Volts
48 Volts
125V (30kVA)
External fuse mandatory
Current limited. Devices can withstand
sustained output short circuit.
Power Good
within 7-10% of V
OUT
Dynamic Characteristics
200μsec (+3.3V & +5.1V)
Dynamic Load Response
(50-100% step to within 1% of V
OUT
) 100μsec (+12V)
2-6msec
Power-up Sequencing
(5.1V power-down before 3.3V)
1-4msec
Power-down Sequencing
(5.1V power-down before 3.3V)
Switching Frequency
320 kHz (+3.3V & +5.1V)
1120 kHz (+12V
Environmental
These are stress ratings. Exposure of devices to any of these conditions may adversely affect
long-term reliability. Proper operation under conditions other than those listed in the Performance/
Functional Specifications Table is not implied.
Calculated MTBF
Operating Ambient Temperature
With 100 lfm Air Flow, no derating
Board Temperature
Thermal Shutdown
Thermal Shutdown Warning
2nd Level Thermal Shutdown
Storage Temperature
3,129,938 hours
–40 to +85°C
–40 to +105°C
+112°C to 118°C
27 to 33 seconds
+122 to +128°C
–40 to +105°C
Physical
Connector Designations
The official PC/104 bus specification identifies the standard interboard bus
connections as paired J1/P1 and J2/P2 on one side and J3/P3 on the other
side. However, J1/P1/J2/P2 is physically all one big 4-row connector with
J1/J2 bus receptacle sockets (female) on the top side and P1/P2 pins (male) on
the bottom. This arrangement provides interboard pass-through connections
between PC/104 boards. MPS refers to this single connector as “J1.”
MPS’s auxiliary connectors (the IPH and the 5V Auxilliary Power Connector)
are internally designated P1 and P2 respectively and this nomenclature may
appear on the board silkscreening. This is purely an artifact of automated
sequential part numbering in our CAD system and has no relation to the
standard PC/104 interboard bus connectors. Don’t get the connectors confused
since they are all very different types and locations!
Dimensions
Connector and Pin Material
Weight
Insulation Level
See Mechanical Specifications
According to PC/104-plus Spec
3.6 ounces (102 grams)
Non-isolated
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_MAPC-104.A06
Page 4 of 7
MAPC-104 PC/104-Plus
Series
Non-Isolated, DC/DC Converters
3.3, 5.1 & 12.4, 46W Mobile Applications
Typical Performance Curves
Efficiency vs. Line @ 46W
94
93
92
Efficiency (%)
Efficiency (%)
91
90
89
88
87
86
9
12
18
24
28
32
Input Voltage (V)
94
93
92
3.3V
OUT
Efficiency vs. Line Voltage and Load Current
(5.1V @ 5.46A and 12V @ 0.07A)
V
IN
= 9V
V
IN
= 12V
91
V
IN
= 24V
90
89
V
IN
= 32V
88
87
86
0
1.25
2.5
3.75
5
6.3
Load Current (Amps)
5.1V
OUT
Efficiency vs. Line Voltage and Load Current
(3.3V @ 5A and 12V @ 0.07A)
94
93
92
Efficiency (%)
Efficiency (%)
91
90
94
12V
OUT
Efficiency vs. Line Voltage and Load Current
(5.1V @ 5.46A and 3.3V @ 5A)
V
IN
= 9V
93
V
IN
= 9V
92
91
90
89
V
IN
= 12V
V
IN
= 12V
V
IN
= 24V
V
IN
= 24V
89
V
IN
= 32V
88
87
86
0
1.25
2.5
3.75
5
6.3
Load Current (Amps)
88
87
86
0
0.02
0.04
V
IN
= 32V
0.06
0.08
0.1
Load Current (Amps)
www.murata-ps.com
Technical enquiries
email: sales@murata-ps.com, tel:
+1 508 339 3000
MDC_MAPC-104.A06
Page 5 of 7
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