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LME

更新时间： 2024-10-31 05:42:23
品牌 Logo 应用领域
CANDD 转换器DC-DC转换器
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2页 167K
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Isolated 250mW Single Output DC-DC Converters

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LME 数据手册

 浏览型号LME的Datasheet PDF文件第2页 
LME SERIES  
Isolated 250mW Single Output DC-DC Converters  
SELECTION GUIDE  
Nominal  
Input  
Output  
Output  
Current  
Isolation  
Package  
Style  
1
Voltage  
Voltage  
Efficiency Capacitance  
MTTF  
Order Code  
(V)  
(V)  
(mA)  
(%)  
(pF)  
kHrs  
LME0305D  
LME0305S  
LME0309D  
LME0309S  
LME0312D  
LME0312S  
LME0315D  
LME0315S  
LME0503D  
LME0503S  
LME0505D  
LME0505S  
LME0509D  
LME0509S  
LME0512D  
LME0512S  
LME0515D  
LME0515S  
LME1205D  
LME1205S  
LME1209D  
LME1209S  
LME1212D  
LME1212S  
LME1215D  
LME1215S  
3.3  
3.3  
3.3  
3.3  
3.3  
3.3  
3.3  
3.3  
5
5
5
5
5
5
5
9
50  
50  
28  
28  
21  
21  
16  
16  
76  
76  
50  
50  
28  
28  
21  
21  
16  
16  
50  
50  
28  
28  
21  
21  
16  
16  
70  
70  
75  
75  
75  
75  
75  
75  
70  
70  
70  
70  
75  
75  
75  
75  
75  
75  
70  
70  
75  
75  
75  
75  
75  
75  
25  
25  
30  
30  
38  
38  
38  
38  
25  
25  
29  
29  
37  
37  
41  
41  
40  
40  
38  
38  
40  
40  
43  
43  
45  
45  
2767  
2767  
1250  
1250  
655  
655  
367  
367  
2637  
2637  
2279  
2279  
1139  
1139  
624  
624  
357  
357  
536  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
DIP  
SIP  
9
12  
12  
15  
15  
3.3  
3.3  
5
5
9
9
12  
12  
15  
15  
5
5
9
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/cm  
■ 3.3V, 5V and 12V Input  
■ 3.3V, 5V, 9V, 12V and 15V Output  
■ Footprint from 0.69cm  
■ UL 94V-0 Package Material  
■ No Heatsink Required  
■ Internal SMD Construction  
■ Toroidal Magnetics  
5
5
5
5
3
5
12  
12  
12  
12  
12  
12  
12  
12  
536  
434  
434  
330  
330  
237  
237  
2
9
12  
12  
15  
15  
When operated with additional external load capacitance the rise time of the input voltage will determine the  
maximum external capacitance value for guaranteed start up. The slower the rise time of the input voltage the  
greater the maximum value of the additional external capacitance for reliable start up.  
■ Fully Encapsulated  
■ No External Components Required  
■ MTTF up to 3.2 Million Hours  
■ PCB Mounting  
INPUT CHARACTERISTICS  
Parameter  
Conditions  
MIN  
2.97  
4.5  
TYP  
3.3  
5
MAX  
3.63  
5.5  
Units  
Continuous operation, 3.3V input types  
Voltage Range Continuous operation, 5V input types  
■ Custom Solutions Available  
V
Continuous operation, 12V input types  
10.8  
12  
13.2  
DESCRIPTION  
OUTPUT CHARACTERISTICS  
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.  
Parameter  
Conditions  
TA= 0°C to 70°C  
MIN  
TYP  
MAX  
0.25  
Units  
W
Rated Power2  
Voltage Set  
See tolerance envelope  
Point Accuracy  
Line Regulation High VIN to low VIN  
10% load to rated load,  
1.2  
15  
%/%  
%
3.3V & 5V output types  
Load Regulation  
10% load to rated load,  
10  
all other output types  
BW=DC to 20MHz, LME03 types  
BW=DC to 20MHz, all other output types  
75  
100  
Ripple & Noise  
mV p-p  
ABSOLUTE MAXIMUM RATINGS  
Short-circuit duration3  
1 second  
300°C  
5V  
7V  
15V  
Lead temperature 1.5mm from case for 10 seconds  
Input voltage VIN, LME03 types  
Input voltage VIN, LME05 types  
Input voltage VIN, LME12 types  
1 Calculated using MIL-HDBK-217F with nominal input voltage at full load.  
2 See derating curve  
3 Supply voltage must be discontinued at the end of the short circuit duration.  
All specifications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specified.  
www.dc-dc.com  
12

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