Datasheet

ManualsBrandsMURATA POWER SOLUTIONS ManualsPSU ComponentsDC/DC converter (print) 12 V 63 mA 750 mW No. of outputs: 1 x

CME Series

Isolated 0.75W Single Output Isolated DC/DC Converters

KDC_CME.A04 Page 1 of 7

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SELECTION GUIDE

Order Code

Nominal Input

Voltage

Output

Voltage

Output Current

Load Regulation

Ripple & Noise

Input

Current at Rated

Load

Efﬁciency

Isolation

Capacitance

MTTF

VVmA

% mV p-p

pF kHrs

Typ. Max. Typ. Max. Min. Typ.

CME0505DC 5 5 150

10 12 15 25 218 67 70

30 3400

CME0505SC 5 5 150

10 12 15 25 218 67 70

30 3400

CME0512SC 5 12 63 5 7 20 30 195 72 77 33 2200

3KVDC isolation options

CME0303S3C 3.3 3.3 227 9 12 15 25 300 66 73 30 1230

CME0305S3C 3.3 5 150 9 12 15 25 300 68 73 35 630

CME0505S3C 5 5 150 9 12 15 25 218 65 70 28 2400

CME0512S3C 5 12 63 5 7 10 15 200 70 75 30 630

INPUT CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Voltage range

Continuous operation, 3.3V input types 2.97 3.3 3.63

Continuous operation, 5V input types 4.5 5.0 5.5

Reﬂected ripple current

3.3V input types 1.5 2

5V input types 2 2.5

OUTPUT CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Rated Power TA=-40°C to 120°C, see derating graphs 0.75 W

Voltage Set Point Accuracy See tolerance envelope

Line regulation High V

IN to low VIN 1.0 1.2 %/%

ISOLATION CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Isolation test voltage

C Versions Flash tested for 1 second 1000

VDC

3C Versions Flash tested for 1 second 3000

Resistance Viso= 1000VDC 10 GΩ

GENERAL CHARACTERISTICS

Parameter Conditions Min. Typ. Max. Units

Switching frequency

CME0505 120

kHz

All other types 135

ABSOLUTE MAXIMUM RATINGS

Lead temperature 1.5mm from case for 10 seconds 260°C

Input voltage V

IN, 3.3V input 5.5V

Input voltage V

IN, 5V input 7V

1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.

All speciﬁcations typical at T

A=25°C, nominal input voltage and rated output current unless otherwise speciﬁed.

PRODUCT OVERVIEW

The CME series are a cost effective 0.75W DC/DC

converter series, in industry standard packages

with industry standard pinout., Popular input and

output voltages are available as a lower power

alternative to a 1W DC/DC converter. The galvanic

isolation allows the device to be conﬁgured to

provide an isolated negative rail in systems where

only positive rails exist. The wide temperature

range guarantees startup from –40°C and full 0.75

watt output at 85°C.

FEATURES

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Single Isolated output

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1kVDC or 3kVDC option

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Wide temperature performance at full

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0.75W load -40 C to 85C°

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Industry Standard Pinout

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3.3V and 5V Inputs

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3.3V, 5V & 12V outputs

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Pin Compatible with LME, MEE1, MEE3,

NKE, NME, & NML series

Summary of content (7 pages)

PAGE 1
CME Series www.murata-ps.com Isolated 0.75W Single Output Isolated DC/DC Converters 5 5 12 CME0303S3C CME0305S3C CME0505S3C CME0512S3C 3.3 3.3 5 5 3.3 5 5 12 10 12 15 25 150 150 10 12 15 25 63 5 7 20 30 3KVDC isolation options 227 9 12 15 25 150 9 12 15 25 150 9 12 15 25 63 5 7 10 15 Single Isolated output 1kVDC or 3kVDC option Wide temperature performance at full 0.75W load -40 C to 85C° Industry Standard Pinout 3.
PAGE 2
CME Series Isolated 0.75W Single Output Isolated DC/DC Converters TEMPERATURE CHARACTERISTICS Parameter Conditions Min. Speciﬁcation Storage All output types -40 -50 Case temperature rise above ambient Cooling 3.3V & 5V output types 12V output types Free air convection Typ. Max.
PAGE 3
CME Series Isolated 0.75W Single Output Isolated DC/DC Converters TEMPERATURE DERATING GRAPHS 0303, 0305 types only. Output Power (W) Output Power (W) All other types. 85°C 0.75 Safe Operating Area 0 -40 100 50 0 Ambient Temperature (°C) Safe Operating Area 120°C 0 -40 150 85°C 0.75 100 50 0 Ambient Temperature (°C) 150 TOLERANCE ENVELOPES 5V output types.
PAGE 4
CME Series Isolated 0.75W Single Output Isolated DC/DC Converters APPLICATION NOTES Minimum load The minimum load to meet datasheet speciﬁcation is 10% of the full rated load across the speciﬁed input voltage range. Lower than 10% minimum loading will result in an increase in output voltage, which may rise to typically double the speciﬁed output voltage if the output load falls to less than 5%.
PAGE 5
CME Series Isolated 0.75W Single Output Isolated DC/DC Converters APPLICATION NOTES (continued) Output Ripple Reduction By using the values of inductance and capacitance stated, the output ripple at the rated load is lowered to 5mV p-p max. Component selection Capacitor: It is required that the ESR (Equivalent Series Resistance) should be as low as possible, ceramic types are recommended. The voltage rating should be at least twice (except for 15V output), the rated output voltage of the DC/DC converter.
PAGE 6
CME Series Isolated 0.75W Single Output Isolated DC/DC Converters PACKAGE SPECIFICATIONS 3C Package DC Package SC Package 11.48 (0.45) 11.48 (0.45) 9.80 (0.386) 6.00 (0.236) CME0505DC 6.00 (0.236) XYYWW 11.50 (0.453) 7.46 (0.293) CME0505S3C 6.80 (0.267) 0.55 (0.022) 0.45 (0.018) XYYWW 10.0 (0.393) CME0505SC 0.55 (0.022) 0.45 (0.018) XYYWW 1 4.60 (0.181) 3.60 (0.142) 2 3 4 4.60 (0.181) 3.60 (0.142) 2.18±0.50 (0.086±0.0197) 1 0.55 (0.022) 0.45 (0.018) 0.50±0.05 (0.0196±0.00196) 2.
PAGE 7
CME Series Isolated 0.75W Single Output Isolated DC/DC Converters PACKAGE SPECIFICATIONS (continued) RECOMMENDED FOOTPRINT DETAILS 8 Pin DC Package 4 Pin 3C & SC Package 4 HOLES 0.1 (0.00394) 1.15 (0.0453) Ø 1.00 (0.0394) 2.54 (0.1) 2.54 (0.1) 4 HOLES 0.1 (0.00394) Ø 1.15 (0.0453) 1.00 (0.0394) 2.54 (0.1) 2.54 (0.1) TUBE OUTLINE DIMENSIONS SC Tube 3C Tube 9.30 (0.366) 14.80 (0.583) 12.43 (0.489) 7.70 (0.303) 0.50 (0.020) 5.07 (0.199) 18.00 (0.709) 14.50 (0.571) 9.30 (0.366) 0.60±0.15 (0.