LMO78_1.0 Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Switching Regulator
High efficiency up to 96%
Operating temperature
range: -40°C ~ +85°C
Open frame SIP package
No-load input current as low
as 0.1mA
Meets UL60950, EN60950
standards
The LMO78_1.0 series is a high efficiency switching regulator and ideal
substitute for the LM78xx series three-terminal linear regulators. The
product is featured with high efficiency, low loss, short circuit
protection and no heat sink is required. They are widely used in indust-
rial control, instrumentation, and electric power applications.
Short circuit protection (SCP)
UL-60950-1 (E347551)
Common specifications
Short circuit protection:
No-load input current:
Reverse Polarity Input:
Input Filter:
Output specifications
Continuous, automatic recovery
0.1mA TYP, 1mA MAX
Forbidden
Item
Test conditions
Min
Typ
Max
Units
Output voltage
accuracy
100% load
• LMO78_03-0.5
• Others
2
2
4
3
%
%
Capacitor Filter
Line regulation
Load regulation
Ripple + Noise*
Input Voltage Range
10% to 100% load
0.2
0.4
20
0.4
0.6
75
%
%
Cooling:
Free air convection
Operation temperature range:
-40°C~+85°C
Power derating above 71°C
20MHz Bandwidth
Vin=24VDC
0% -100% load
mVp-
p
Storage temperature range:
Pin welding resistance temperature:
Storage humidity range:
Package material:
-55°C ~+125°C
Switching frequency Full load, nom. input
260°C MAX, 1.5mm from case for 10 sec
< 95%RH
• LMO78_03-1.0/
LMO78_05-1.0
• Others
420
580
520
620
KHz
680
50
780
300
KHz
mV
Plastic [UL94-V0]
Transient response
deviation
Nominal input, 25%
load step change
MTBF:
>2,000,000 hours
+25°C MIL-HDBK-217F
Transient recovery
time
Nominal input, 25%
load step change
0.1
1
ms
Weight:
2.1g
Temperature
coefficient
-40 °C to +85 °C
ambient
0.03
%/°C
Note:
1. The max. capacitive load should be tested within the input voltage range and
under full load conditions;
* Test ripple and noise by “parallel cable” method. With the load lower than 20%,
the maximum ripple and noise of 3.3V/5V output products will be 100mVp-p,
12V/15V output products will be 2%Vo.
2. Without any special statement, all indexes are only specific to positive output
application;
3. Unless otherwise specified, data in this datasheet should be tested under the
conditions of Ta = 25°C, humidity <75% when inputting nominal voltage and
outputting rated load;
Example:
4. All index testing methods in this datasheet are based on our Company’s
corporate standards;
LMO78_05-1.0
LM = Series; S = SIP Case; 05 = 5Vout; 1.0 = 1.0A
5. The performance indexes of the product models listed in this manual are as
above, but some indexes of non-standard model products will exceed the
above-mentioned requirements, and please directly contact with our technician
for specific information;
6. Specifications subject to change without prior notice.
EMC specifications
EMI
CE
CISPR22/EN55022
CISPR22/EN55022
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
IEC/EN61000-4-5
IEC/EN61000-4-6
CLASS B
CLASS B
Contact 4KV
10V/m
(External circuit refer to EMC recommended circuit, 2 or EMC module application circuit)
(External circuit refer to EMC recommended circuit, 2 or EMC module application circuit)
perf. Criteria B
EMI
RE
EMS
EMS
EMS
EMS
EMS
ESD
RS
perf. Criteria A
EFT
Surge
CS
1KV
perf. Criteria B (External circuit refer to EMC recommended circuit, 1 )
line to line 1KV perf. Criteria B (External circuit refer to EMC recommended circuit, 1 )
3 Vr.m.s perf. Criteria A
Page 1 of 4
LMO78_1.0 – Rev. 2020-1.4
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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