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參數資料
| 型號： | LME1212DC |
| 廠商： | MURATA POWER SOLUTIONS INC |
| 元件分類： | 電源模塊 |
| 英文描述： | DC-DC REG PWR SUPPLY MODULE |
| 封裝： | ROHS COMPLIANT, DIP-8/4 |
| 文件頁數： | 1/4頁 |
| 文件大小： | 147K |
| 代理商： | LME1212DC |
KDC_LMEC_E03 Page 1 of 5
Technical enquiries - email: mk@murata-ps.com, tel: +44 (0)1908 615232
www.murata-ps.com
LME Series
Isolated 250mW Single Output DC/DC Converters
www.murata-ps.
com
For full details go to
www.murata-ps.com/rohs
SELECTION GUIDE
Order Code
Nominal Input
Voltage
Output
Voltage
Output
Current
Efciency
Isolation
Capacitance
MTTF1
Package
Style
V
mA
%
pF
kHrs
LME0505DC
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
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
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
21
75
43
330
LME1215SC
12
15
16
75
45
237
When operated with additional external load capacitance the rise time of the input voltage will determine the maximum external ca-
pacitance 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.
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 Power2
TA=0°C to 70°C
0.25
W
Voltage Set Point Accuracy
See tolerance envelope
Line regulation
High VIN to low VIN
1.0
1.2
%/%
Load Regulation2
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
Short-circuit protection3
1 second
Lead temperature 1.5mm from case for 10 seconds
300°C
Input voltage VIN, LME05 types
7V
Input voltage VIN, LME12 types
15V
1. Calculated using MIL-HDBK-217F with nominal input voltage at full load.
2. See derating curve.
3. Supply voltage must be disconnected at the end of the short circuit duration.
All specications typical at TA=25°C, nominal input voltage and rated output current unless otherwise specied.
FEATURES
RoHS compliant
Single output rail
1kVDC isolation
High efciency for low power applications
SIP & DIP package styles
Power density 0.36W/cm3
UL 94V-0 package material
Footprint from 0.69cm2
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 2.2 million hours
Custom solutions available
Pin compatible with NKE, NME & NML
series
PCB mounting
DESCRIPTION
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.
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