LMTO78_0.5 Series
Wide input, non-isolated & regulated, single output, SMD package
Switching Regulator
Efficiency up to 95%
Short circuit protection (SCP)
No-load input current as low
as 0.2mA
The LMTO78_0.5 Series are high efficiency switching regulators. The
converters feature high efficiency, low loss and short-circuit protection
in a compact SMD package. These products are widely used in applica-
tions such as industrial control, instrumentation and electric power.
Ultra-thin SMD Package,
thickness≤3.5mm
Operating ambient tempera-
ture range: -40°C ~ +85°C
RoHS compliance
Common specifications
Cooling:
Output specifications
Free air convection
Item
Test conditions
Min
Typ
Max
Units
Short circuit protection:
Operating temperature range:
Storage temperature range:
Reflow soldering temperature:
Continuous, automatic recovery
-40°C ~ +85°C
Voltage accuracy
• 3.3VDC input
• Others
2
2
4
3
%
%
Vadj*
input voltage range
10
2
%Vo
-55°C ~ +125°C
Output voltage
accuracy
Peak temp. ≤245°C, maximum duration
time ≤60s over 217°C. For actual
application, please refer to IPC/JEDEC
J-STD-020D.1.
Line regulation
Input voltage range at
full load
0.2
0.4
%
Operating case temperature:
Storage humidity range:
Safety standard:
100°C MAX
< 95%
Load regulation
Nominal input, 10% to
100% load
• 3.3/5VDC input
• Others
0.6
0.3
%
%
UL/cUL 60950-1, 62368-1
IEC/EN 60950-1, 62368-1
Ripple + Noise*
20MHz bandwidth
• 3.3VDC, 20-100% load
• Others, 10-100% load
20
20
50
50
mVp-p
mVp-p
Case material:
Plastic [UL94-V0]
> 2,000,000 hours
0.9g
MTBF (MIL-HDBK-217F,+25°C):
Package weight:
Temperature
coefficient
0.03
%/°C
Dimensions:
12.50 x 13.50 x 3.50mm
Transient recovery Normal Vin, 25% load
time step change
0.2
1
ms
Transient response Normal Vin, 25% load
50
200
mV
Input specifications
deviation
step change
Item
Test conditions
Min Typ
0.2
Max
1.5
Units
mA
Switching
frequency
700
KHz
No-load input
current
*
The “parallel cable” method is used for Ripple and Noise test, please refer to
DC-DC Converter Application Notes for specific information.
With light loads at or below 20%, Ripple & Noise for 3.3V output parts increases
to 100mVp-p max, and a load below 10% for 5V/9V/12V/15V output parts levels
increase to 150mVp-p max.
Reverse polarity at
input
Avoid / not protected
Capacitance filter
Input filter
Ctrl*
• Module on
• Module off
Ctrl pin open or pulled high (TTL
3.2-8VDC)
Ctrl pin pulled low to GND (0-
0.8VDC)
Example:
LMTO78_05-0.5
• Input current when
off
30
100
µA
LM = Series; T = SMT case; O= Open frame; yy = 5Vout; pp = 0.5A
* The remote ON/OFF pin is referenced to -Vin.
Note:
1. All specifications measured at Ta = 25°C, humidity <75%, nominal input voltage
and rated output load unless otherwise specified.
2. In this datasheet, all the test methods of indications are based on corporate
standards.
Page 1 of 4
LMTO78_0.5 – Rev. 2019-1.0
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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