MTC1 Series
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Isolated 1W SM 2:1 Input Single Output DC/DC Converters
SELECTION GUIDE
Input
2
Efciency Ripple and Noise MTTF
Voltage
1
Order Code
Nom. Min. Typ. Typ. Max. MIL Telecordia
V V mA mA % % mVp/p mVp/p kHrs kHrs
MTC1S1203MC 12 3.3 303 110 72 75 25 50 1143 17407
MTC1S1205MC 12 5 200 110 77 78.5 25 50 1129 17407
MTC1S1212MC 12 12 83 100 77 79 20 40 977 17407
MTC1S2403MC 24 3.3 303 55 73 75.5 30 55 1042 17109
MTC1S2405MC 24 5 200 55 74 76.5 25 50 990 17109
MTC1S2412MC 24 12 83 55 75 77 25 50 833 17109
FEATURES
INPUT CHARACTERISTICS
UL 60950 recognised for reinforced
Parameter Conditions Min. Typ. Max. Units
insulation
12V input types 9 12 18
ANSI/AAMI ES60601-1, 1 MOPP/ 2 MOOPs
Voltage range V
recognised
24V input types 18 24 36
Input reected ripple
3kVAC isolation test voltage Hi Pot Test
All variants 2 mA p-p
current
Continuous short circuit protection
OUTPUT CHARACTERISTICS
Output Voltage Trim
Parameter Conditions Min. Typ. Max. Units
Remote on/off pin Rated power All output types 1
W
Minimal load to meet datasheet specication 10 %
No electrolytic capacitors
3V, 5V output types -2.5 2
Voltage set point accuracy %
Operating temperature range -40C to
12V output types -3 2
100C
Line regulation Low line to high line 0.05 0.2 %
2:1 Input Range
Load regulation All output types 0.25 0.5 %
2403 variant 4
PRODUCT OVERVIEW
Peak deviation (25-75%
2405 variant 3 %Vout
& 75-25% swing)
The MTC1 series of miniature surface mount DC/
All other variants 2
DC converters offers a single output voltage from
Transient response
1203 220
input voltage ranges of 9-18V and 18-36V. The
1205 260
Settling time
MTC1 series regulated output voltage is adjust-
s
(within 5% V Nom.)
able by 10% and a remote on/off pin is also out 1212, 2403 & 2405 100
included for application power saving.
2412 70
The MTC1 ideally suited to applications which ISOLATION CHARACTERISTICS
include medical. Industrial, telecommunications, Parameter Conditions Min. Typ. Max. Units
battery powered systems, and process automa- Production tested for 1 second 3000 VAC
Isolation test voltage
tion.
Qualication tested for 1 minute 3000 VAC
Isolation capacitance All variants 7 pF
Resistance Viso = 1kVDC 1 G
1. Components are supplied in tape and reel packaging, please refer to package specication section. Orderable part numbers are
MTC1SXXXXMC-R7 (30 pieces per reel), or MTC1SXXXXMC-R13 (150 pieces per reel)
2. Calculated using MIL-HDBK-217 FN2 and Telecordia SR-332 calculation model with nominal input voltage at full load.
For full details go to
www.murata-ps.com/rohs
All specications typical at TA=25C, nominal input voltage and rated output current unless otherwise specied.
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KDC_MTC1.D01 Page 1 of 11
Output
Voltage
Output
Current
Rated Input
CurrentMTC1 Series
Isolated 1W SM 2:1 Input Single Output DC/DC Converters
1
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
1203, 2405, 2403 variants 240
Switching frequency 1205, 2412 variants 260 kHz
1212 variant 300
Module on, pin unconnected or open collector oating
Module off (refer to application notes) 2 V
Remote on/off pin
12V input types 1.5
mW
24V input types 3.9
TEMPERATURE CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Operation -40 100
Storage -50 125 C
Case temperature above ambient 100% Load, Nom VIN, Still Air 15
ABSOLUTE MAXIMUM RATINGS
Short-circuit protection (for SELV input voltages) Continuous
Remote on/off pin input voltage 6V
Input voltage, MTC1 12V input types 25V
Input voltage, MTC1 24V input types 40V
APPLICATION NOTES
Maximum Output Capacitance
Maximum output capacitance should not exceed:
Output Voltage Maximum Load Capacitance
VF
3.3 470
5 470
12 220
Start-up times
Typical start up times for this series, with a typical input voltage rise time of 2.2s and output capacitance of 10F, are shown in the table below. The product series will
start into the maximum output capacitance with increased start times.
Typical Wave Form:
Start-up times
Part No.
ms
MTC1S1203MC 5
MTC1S1205MC 14
MTC1S1212MC 25
MTC1S2403MC 9
MTC1S2405MC 14
MTC1S2412MC 25
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KDC_MTC1.D01 Page 2 of 11