LMTM78_0.5 Series
Wide input, non-isolated & regulated, single output
Switching Regulator
Efficiency up to 92%
Short circuit protection (SCP)
Ultra-small, ultra-thin DFN
package
Operating temperature range:
-40°C to +105°C
No-load input current as low
The LMTM78_0.5 Series are high efficiency switching regulators. The
converters feature high efficiency, low loss and short-circuit protection
in a
compact DFN package. These products are widely used in applications
such as industrial control, instrumentation and electric power.
as 0.1mA
AEC-Q100 approved (under
testing)
Common specifications
Cooling:
Output specifications
Free air convection
Item
Test conditions
Min
Typ
Max
Units
Short circuit protection mode:
Short circuit protection:
Operating temperature range:
Storage temperature range:
Lead temperature:
Hiccup mode
Voltage accuracy
Input voltage range at
full load
Continuous, automatic recovery
-40°C ~ +105°C
• 3.3VDC
2
2
4
3
%
%
• Others
Line regulation
Load regulation
Ripple + Noise*
Input voltage range at
full load
0.2
0.4
20
%
-55°C ~ +125°C
300°C MAX, 1.5mm from case for 10 sec
100°C MAX
Nominal input, 10% to
100% load
%
Operating case temperature:
Reflow Soldering Temperature:
Peak temp. ≤ 245°C,maximum duration
time ≤ 60s at 217°C. For actual
application, please refer to
20MHz bandwidth
45
mVp-p
%/°C
Temperature
coefficient
- 40°C to + 105°C
ambient
0.02
IPC/JEDEC J-STD-020D.1
Transient response Nominal input voltage,
deviation 25% load step change
50
120
0.8
mV
ms
Storage humidity range:
Case material:
< 95%
Plastic [UL94-V0]
> 9152 Khours
0.58g
Transient recovery Nominal input voltage,
0.2
MTBF (MIL-HDBK-217F,+25°C):
Weight:
time
25% load step change
Vadj
input voltage range
10
%Vo
MHz
Dimensions:
9.00 ×7.00 × 3.10mm
Switching
frequency
Full load, nominal
input voltage
2.0
* Ripple and noise tested with “parallel cable” method.
Input specifications
Item
Test conditions
Min Typ
0.1
Max
Units
mA
No load input
current
EMC specifications
EMI
CE
CISPR32/EN55032
CLASS B
Reverse polarity
input
Avoid/not protected
(see EMC recommended circuit, ②)
EMI
RE
CISPR32/EN55032 CLASS B
(see EMC recommended circuit, ②)
Input filter
Capacitor
Remote ON/OFF*
• Module switch on
Ctrl pin open or pulled high
(TTL 2.5~5VDC)
EMS
EMS
EMS
ESD*
RS
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
Contact 6KV
10V/m
perf. Criteria B
perf. Criteria A
perf. Criteria B
• Module switch off
Ctrl pin pulled low to GND (-Vo)
(0~0.6VDC)
EFT
1KV
• Input current when
switched off
240
µA
(see EMC recommended circuit, ①)
EMS
EMS
Surge
CS
IEC/EN61000-4-5
(see EMC recommended circuit, ①)
1KV
perf. Criteria B
perf. Criteria A
* The positive output ctrl pin voltage is referenced to input GND; Negative output
ctrl pin voltage is referenced to -Vo.
IEC/EN61000-4-6 3 Vr.m.s
* The static level of the Ctrl & Trim pin is 2KV when they are not connected to
external devices; It is suggested to connect an external capacitor (105K/50V)
from Ctrl to GND/-Vo to meet ESD ( 6KV) of the Ctrl pin, and to connect a
varistor (22V/30A) from Trim to GND/-Vo to meet ESD( 6KV) of the Trim pin.
Example:
LMTM78_05-0.5
LM = Series; T = SMT case; M = Micro size; yy = 5Vout; pp = 0.5A
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 5
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMTM78_0.5 – Rev. 2020-1.0
Specifications subject to change without notice.