Datasheet

LME Series
Isolated 250mW Single Output DC/DC Converters
KDC_LMEC.E05 Page 1 of 4
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SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output
Voltage
Output
Current
Efficiency
Isolation
Capacitance
MTTF
1
Package
Style
V V mA % pF kHrs
LME0505DC 5 5 50 70 29 2279
DIP
LME0509DC 5 9 28 75 37 1139
LME0512DC 5 12 21 75 41 624
LME0515DC 5 15 16 75 40 357
LME0505SC 5 5 50 70 29 2279
SIP
LME0509SC 5 9 28 75 37 1139
LME0512SC 5 12 21 75 41 624
LME0515SC 5 15 16 75 40 357
LME1205DC 12 5 50 70 38 536
DIP
LME1209DC 12 9 28 75 40 434
LME1212DC 12 12 21 75 43 330
LME1215DC 12 15 16 75 45 237
LME1205SC 12 5 50 70 38 536
SIP
LME1209SC 12 9 28 75 40 434
LME1212SC 12 12 21 75 43 330
LME1215SC 12 15 16 75 45 237
INPUT CHARACTERISTICS
Parameter
Conditions Min. Typ. Max.
Units
Voltage range
Continuous operation, 5V input types 4.5 5.0 5.5
V
Continuous operation, 12V input types 10.8 12 13.2
OUTPUT CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Rated Power
2
TA=0°C to 70°C 0.25 W
Voltage Set Point Accuracy See tolerance envelope
Line regulation High V
IN to low VIN 1.0 1.2 %/%
Load Regulation
2
10% load to rated load, 5V output types 15
%
10% load to rated load, all other types 10
Ripple and Noise BW=DC to 20MHz, all output types 100 mV p-p
ISOLATION CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Isolation test voltage Flash tested for 1 second 1000 VDC
Resistance Viso= 500VDC 1 GΩ
GENERAL CHARACTERISTICS
Parameter Conditions Min. Typ. Max. Units
Switching frequency All input types 100 kHz
ABSOLUTE MAXIMUM RATINGS
Lead temperature 1.5mm from case for 10 seconds 300°C
Input voltage V
IN, LME05 types 7V
Input voltage V
IN, LME12 types 15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating curve.
All specifications typical at T
A=25°C, nominal input voltage and rated output current unless otherwise specified.
FEATURES
RoHS compliant
Single output rail
1kVDC isolation
High efficiency for low power applications
SIP & DIP package styles
Power density 0.36W/cm
3
UL 94V-0 package material
Footprint from 0.69cm
2
5V & 12V input
5V, 9V, 12V & 15V output
No heatsink required
Internal SMD construction
Fully encapsulated with toroidal magnetics
No external components required
MTTF up to 2.7 million hours
Custom solutions available
Pin compatible with NKE, NME, NML &
MEE3 series
PCB mounting
PRODUCT OVERVIEW
The LME series of DC/DC converters are optimised
for low-power operation. They are ideally suited to
generating a negative supply where only a posi-
tive rail exists.