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參數(shù)資料
| 型號(hào)： | LME1215S |
| 元件分類(lèi)： | 電源模塊 |
| 英文描述： | 1-OUTPUT 0.25 W DC-DC REG PWR SUPPLY MODULE |
| 封裝： | SIP-4 |
| 文件頁(yè)數(shù)： | 1/2頁(yè) |
| 文件大小： | 93K |
| 代理商： | LME1215S |
SELECTION GUIDE
FEATURES
s
High Efficiency for Low Power
Applications
s
Pin Compatible with NME & NML
s
1kVDC Isolation
s
SIP & DIP Package Styles
s
Single Output Rail
s
Power Density 0.36W/cm3
s
3.3V, 5V and 12V Input
s
3.3V, 5V, 9V, 12V and 15V Output
s
Footprint from 0.69cm2
s
UL 94V-0 Package Material
s
No Heatsink Required
s
Internal SMD Construction
s
Toroidal Magnetics
s
Fully Encapsulated
s
No External Components Required
s
MTTF up to 3.2 Million Hours
s
PCB Mounting
s
Custom Solutions Available
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.
Nominal
Input
Output
Isolation
Package
Voltage
Current
Efficiency Capacitance
MTTF1
Style
Order Code
(V)
(mA)
(%)
(pF)
kHrs
LME0305D
3.3
5
50
70
25
2767
DIP
LME0305S
3.3
5
50
70
25
2767
SIP
LME0309D
3.3
9
28
75
30
1250
DIP
LME0309S
3.3
9
28
75
30
1250
SIP
LME0312D
3.3
12
21
75
38
655
DIP
LME0312S
3.3
12
21
75
38
655
SIP
LME0315D
3.3
15
16
75
38
367
DIP
LME0315S
3.3
15
16
75
38
367
SIP
LME0503D
5
3.3
76
70
25
2637
DIP
LME0503S
5
3.3
76
70
25
2637
SIP
LME0505D
5
50
70
29
2279
DIP
LME0505S
5
50
70
29
2279
SIP
LME0509D
5
9
28
75
37
1139
DIP
LME0509S
5
9
28
75
37
1139
SIP
LME0512D
5
12
21
75
41
624
DIP
LME0512S
5
12
21
75
41
624
SIP
LME0515D
5
15
16
75
40
357
DIP
LME0515S
5
15
16
75
40
357
SIP
LME1205D
12
5
50
70
38
536
DIP
LME1205S
12
5
50
70
38
536
SIP
LME1209D
12
9
28
75
40
434
DIP
LME1209S
12
9
28
75
40
434
SIP
LME1212D
12
21
75
43
330
DIP
LME1212S
12
21
75
43
330
SIP
LME1215D
12
15
16
75
45
237
DIP
LME1215S
12
15
16
75
45
237
SIP
i When operated without additional external load capacitance, the output voltage of the devices is guaranteed
to be within 95% of its steady state value within 100ms after the input voltage has reached 95% of its steady
state value, irrespective of the rise time of the input voltage.
ii 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.
Parameter
Conditions
MIN
TYP
MAX
Units
Continuous operation, 3.3V input types
2.97
3.3
3.63
Voltage Range
Continuous operation, 5V input types
4.5
5
5.5
V
Continuous operation, 12V input types
10.8
12
13.2
Short-circuit duration3
1 second
Lead temperature 1.5mm from case for 10 seconds
300°C
Input voltage VIN, LME03 types
5V
Input voltage VIN, LME05 types
7V
Input voltage VIN, LME12 types
15V
INPUT CHARACTERISTICS
OUTPUT CHARACTERISTICS
ABSOLUTE MAXIMUM RATINGS
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.
LME SERIES
Isolated 250mW Single Output DC-DC Converters
www.dc-dc.com
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 V
IN to low V IN
1.2
%/%
10% load to rated load,
Load Regulation
3.3V & 5V output types
15
%
10% load to rated load,
all other output types
10
Ripple & Noise
BW=DC to 20MHz, LME03 types
75
mV p-p
BW=DC to 20MHz, all other output types
100
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