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Newport

LME0509 Datasheet Preview

LME0509 Datasheet

Isolated 250mW Single Output DC-DC Converters

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LME SERIES
Isolated 250mW Single Output
features
High Efficiency for Low Power
Applications
Pin Compatible with NME & NML
1kVDC Isolation
SIP & DIP Package Styles
Single Output Rail
Power Density 0.36W/cm3
3.3V, 5V and 12V Input
3.3V, 5V, 9V, 12V and 15V Output
Footprint from 0.69cm2
UL 94V-0 Package Material
No Heatsink Required
Internal SMD Construction
Toroidal Magnetics
Fully Encapsulated
No External Components Required
MTTF up to 3.2 Million Hours
PCB Mounting
Custom Solutions Available
p i n c o n n ect i o n s
8 Pin DIP (top view)
0V +V
75
1
GND
4
V IN
description
The LME series of DC-DC converters are
optimised for low-power operation. Due to
the low quiescent current they are able to
offer efficiencies up to 75%. The use of
advanced magnetics ensures a minimal
quiescent current of around 2.5mA which
ensures that efficiency is maximised in low
power applications. They are ideally suited
to generating a negative supply where only
a positive rail exists.
4 Pin SIP
1234
GND VIN 0V +V
DC-DC Converters 2 - 7




Newport

LME0509 Datasheet Preview

LME0509 Datasheet

Isolated 250mW Single Output DC-DC Converters

No Preview Available !

LME SERIES
Isolated 250mW Single Output
absolute maximum ratings over operating free air* temperature range
Input voltage VIN LME03 types . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Input voltage VIN LME05 types . . . . . . . . . . . . . . . . . . . . . . . . . . . 7V
Input voltage VIN LME12 types . . . . . . . . . . . . . . . . . . . . . . . . . . 15V
Output power total . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 250mW
Short circuit duration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1s
Isolation voltage (flash tested for 1 second) . . . . . . . . . . . . . . . . . 1000VDC
Operating free air temperature range . . . . . . . . . . . . . . . . . . . 0°C to 70°C1
Storage temperature range . . . . . . . . . . . . . . . . . . . . . . --55°C to 150°C
Lead temperature 1.5mm from case for 10 seconds . . . . . . . . . . . . . . . 300°C
electrical specifications
(measured at TA=25°C, at nominal input voltage)
Input voltage range LME03 types . . . . . . . . . . . . . . . . . . . . . . 3.3V 10%
Input voltage range LME05 types . . . . . . . . . . . . . . . . . . . . . . . 5V 10%
Input voltage range LME12 types . . . . . . . . . . . . . . . . . . . . . . 12V 10%
Load voltage regulation (10% to 100% full load)
3.3V and 5V output types . . . . . . . . . . . . . . . . . . . . . . . . 15% max.
9V, 12V and 15V output types . . . . . . . . . . . . . . . . . . . . . . 10% max.
Line voltage regulation (10% to 100% full load) . . . . . . . . . . . . . 1.2%/1% of VIN
Output voltage accuracy . . . . . . . . . . . . . . . . . See tolerance envelope graph
Input reflected ripple (20MHz Band limited)
LME03 types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50mV p-p max.
LME05 and 12 types . . . . . . . . . . . . . . . . . . . . . . . . 40mV p-p max.
Output ripple (20MHz Band limited)
LME03 types . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75mV p-p max.
LME05 and 12 types . . . . . . . . . . . . . . . . . . . . . . . 100mV p-p max.
Insulation resistance at 500VDC . . . . . . . . . . . . . . . . . . . . 1000 M min.
Efficiency at full load, 3.3V and 5V output types . . . . . . . . . . 70% typical 60% min.
Efficiency at full load, 9V, 12V and 15V output types . . . . . . . . 75% typical 70% min.
* Free air -- requires a minimum of 10mm air space around the component.
1 See derating curve.
2- 8


Part Number LME0509
Description Isolated 250mW Single Output DC-DC Converters
Maker Newport
Total Page 7 Pages
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