Data Sheet

GAPTEC-Electronic GmbH & Co. KG
[e-mail] – www.gaptec-electronic.com
Page 1 of 4
LME78_1.0 – Rev. 2017-1.0
Specications subject to change without notice.
LME78_1.0 Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Switching Regulator
The LME78_1.0 are high eciency switching regulators and ideal
substitutes of LM78xx series three-terminal linear regulators. The
product is featured with high eciency, low loss, short circuit protection
and no heat sink requirement. They are widely used in industrial control,
instrumentation, and electric power applications.
Example:
LME78_05-1.0
LM= Series; S= SIP Case; ##= 5Vout; pp=1.0A
Common specications
Short circuit protection: Hiccup, automatic recovery
No-load input current: 2mA TYP, 5mA MAX
Temperature rise at full load: 25°C MAX, 15°C TYP
Cooling: Free air convection
Operation temperature range: -40°C~+85°C
(see temperature derating curve)
Storage temperature range: -55°C ~+125°C
Pin welding resistance temperature: 260°C MAX, 1.5mm from case for 10 sec
Operating case temperature: 100°C
Storage humidity range: < 95%RH
Package material: Plastic [UL94-V0]
MTBF (MIL-HDBK-217F @25°C): 2000 K hours
Weight: 1.9g
Note:
1. The max. capacitive load should be tested within the input voltage range and
under full load conditions;
2. Without any special statement, all indexes are only specic to positive output
application;
3. Unless otherwise specied, 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;
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 specic information;
6. Specications subject to change without prior notice.
Output specications
Item Test conditions Min Typ Max Units
Voltage accuracy Full load, input voltage
range
• LME78_03-1.0
• Others
±2
±1.5
±4
±3
%
%
Line regulation Full load, input voltage
range
±0.2 ±0.4 %
Load regulation 10% to 100% load
• positive output
• negative output
±0.4
±0.4
±0.6
±0.8
%
%
Ripple + Noise* 20MHz bandwidth,
nominal input, 20%
-100% load
25 75 mVp-p
Switching frequency 520 KHz
Temperature Drift
Coecient
±0.03 %/°C
Transient response
deviation
Nominal input,
25%-50%-25%, 50%-75%-
50% load step change
±60 ±200 mV
Transient recovery
time
Nominal input,
25%-50%-25%, 50%-75%-
50% load step change
1 ms
* 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, 9V/12V/15V output products will be 2%Vo.
Input specications
Item Test conditions Min Typ Max Units
No-load input
current
• positive output
• negative output
0.3
1
1
4
mA
mA
Reverse polarity
input
Forbidden
Input Filter Capacitor Filter
* Test ripple and noise by “parallel cable” method.
High eciency up to 96%
Operating temperature range:
-40°C ~ +85°C
Short circuit protection (SCP)
No-load input current as low
as 0.3mA
3PIN SIP package
Non isolated, no need for
heatsink
UL94V-0 package material
Meets IEC62368, UL62368,
EN62368 standards (Pending)
EMC specications
EMI CE CISPR32/EN55032 CLASS B
(see EMC rec. circuit 2 )
EMI RE CISPR32/EN55032 CLASS B
(see EMC rec. circuit 2 )
EMS ESD IEC/EN61000-4-2 Contact ±4KV
perf. Criteria A
EMS RS IEC/EN61000-4-3 10V/m
perf. Criteria A
EMS EFT IEC/EN61000-4-4 ±1KV
perf. Criteria A
(see EMC rec. circuit 1 )
EMS Surge IEC/EN61000-4-5 line to line ±1KV
perf. Criteria A
(see EMC rec. circuit 1 )
EMS CS IEC/EN61000-4-6 3Vr.m.s
perf. Criteria A