LMS78_0.5R Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Switching Regulator
Efficiency up to 93%
Operating temperature
range: -40°C ~ +85°C
Pin-out compatible with
LM78xx linears
Short circuit protection (SCP)
Thermal shutdown
Low ripple and noise
Sip package, meet UL94-V0
Low temperature rise
Industry standard pinout
Ultra low no-load power
consumption
The LMS78_0.5R series high efficiency switching regulators are ideally
suited to replace LM78xx linear regulators and are pin compatible.
UL-60950-1 (E347551)
Common specifications
Short circuit protection:
No-load input current:
Reverse Polarity Input:
Input Filter:
Output specifications
Continuous, automatic recovery
0.2mA TYP, 1.5mA MAX
Forbidden
Item
Test conditions
100% load
Min
Typ
2
Max
3
Units
%
Output voltage
accuracy
Line regulation
Input Voltage Range
10% to 100% load
0.2
0.4
0.4
0.6
%
Capacitor Filter
Load regulation
Output current limit
Ripple + Noise*
%
Temperature rise at full load:
Cooling:
25°C MAX, 15°C TYP
Free air convection
3000
75
mA
20MHz Bandwidth
Vin=24VDC
0% -100% load
20
mVp-
p
Operation temperature range:
-40°C~+85°C
Power derating above 71°C
Storage temperature range:
Pin welding resistance temperature:
Operating case temperature:
Storage humidity range:
Package material:
-55°C ~+125°C
Over heat protec-
tion
Internal IC junction
170
1.8
°C
W
260°C MAX, 1.5mm from case for 10 sec
Short circuit input
power
0.5
100°C
< 95%RH
Switching frequency
550
850
250
KHz
mV
Plastic [UL94-V0]
Transient response
deviation
Nominal input, 25%
load step change
55
MTBF:
>2,000,000 hours
+25°C MIL-HDBK-217F
Transient recovery
time
Nominal input, 25%
load step change
0.5
2
ms
Weight:
2g
Temperature coef-
ficient
-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 10%,
maximum ripple and noise will be 150mVp-p.
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;
4. All index testing methods in this datasheet are based on our Company’s
corporate standards;
Example:
LMS78_05-0.5R
LM = Series; S = SIP Case; 05 = 5Vout; 0.5 = 0.5A; R = Revised
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/EN61000-4-6
CLASS B
CLASS B
(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)
EMI
RE
EMS
EMS
EMS
EMS
EMS
ESD
RS
Contact 4KV perf. Criteria B
10V/m
2KV
perf. Criteria A
EFT
CS
perf. Criteria B (External circuit refer to EMC recommended circuit, 1 )
3 Vr.m.s
perf. Criteria A
perf. Criteria B
Voltage dips,
short and
interruptions
immunity
IEC/EN61000-4-29 0%-70%
Page 1 of 3
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMS78_0.5R – Rev. 2020-2.6
Specifications subject to change without notice.
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