Datasheet

GAPTEC-Electronic GmbH & Co. KG
[e-mail] – www.gaptec-electronic.com
Page 1 of 5
LMT78_1.0R – Rev. 2017-1.0
Specications subject to change without notice.
LMT78_1.0R Series
Wide input, non-isolated & regulated, single output, SMD package
Eciency up to 95%
No need for heat sinks
1.0AMP SMD package
Wide input voltage range
(4.75V - 36V)
Adjustable output voltage
Remote ON/OFF control
Short circuit protection (SCP),
thermal shutdown
Very low shutdown current
Super low ripple and noise
Meets IEC62368, UL62368,
EN62368 standards (pending)
The LMT78_1.0R Series with high eciency switching regulators is an
ideally supply for space constrained mobile applications. There is no
need for any heat sink, even if operated at + 85°C. The additional
features include remote ON/OFF control and adjustable output
voltage.
Super low ripple and noise of typically only 10mV and a shutdown input
current of typically only 15uA.
Example:
LMT78_05-1.0R
LM = Series; T = SMT case; yy = 5Vout; pp = 1.0A; R = Revised
Common specications
Cooling: Free air convection
Short circuit protection mode: Hiccup mode
Short circuit protection: tinuous, automatic recovery
Operating temperature range: -40°C ~ +85°C
Storage temperature range: -55°C ~ +125°C
Lead temperature: 300°C MAX, 1.5mm from case for 10 sec
Operating case temperature: 100°C MAX
Reow Soldering Temperature: Peak temp. ≤ 245°C,maximum duration
time ≤ 60s at 217°C. For actual
application, please refer to
IPC/JEDEC J-STD-020D.1
Storage humidity range: < 95%
Case material: Plastic [UL94-V0]
MTBF (MIL-HDBK-217F,+25°C): > 2,000,000 hours
Package weight: 1.5g
Dimensions: 15.24 * 11.40 * 8.25mm
Note:
1. All specications measured at Ta = 25°C, humidity <75%, nominal input voltage
and rated output load unless otherwise specied.
2. In this datasheet, all the test methods of indications are based on corporate
standards.
Output specications
Item Test conditions Min Typ Max Units
Output voltage
accuracy
Input voltage range at
full load
• 1.5/1.8/2.5/3.3VDC
• Others
±2
±2
±4
±3
%
%
Line regulation Input voltage range at
full load
±0.2 ±0.4 %
Load regulation Nominal input, 10% to
100% load
• 1.5/1.8/2.5VDC
• Others
±1
±0.6
%
%
Ripple + Noise* 20MHz bandwidth
1.5/1.8/2.5/3.3VDC
• 20% - 100% load
• < 20% load
Others
• 10% - 100% load
• < 10% load
20
20
20
20
50
100
50
150
mVp-p
mVp-p
mVp-p
mVp-p
Temperature
coecient
- 40°C to + 85°C
ambient
±0.03 %/°C
Transient response
deviation
Nominal input voltage,
25% load step change
50 200 mV
Transient recovery
time
Nominal input voltage,
25% load step change
0.2 1 ms
Vadj input voltage range ±10 %Vo
Switching
frequency
Full load, nominal
input voltage
• LMT78_1.5-1.0R
• Others
370
700
KHz
KHz
* Ripple and noise tested with “parallel cable” method, please refer to DC-DC
converter Application Notes for specic operation methods.
Input specications
Item Test conditions Min Typ Max Units
No load input
current
0.2 1.5 mA
Reverse polarity
input
Forbidden
Input lter Capacitor
Remote ON/OFF* • Module switch on
• Module switch o
• Input current when
switched o
suspended or connected to TTL
high level (3.2-8VDC)
pin connected to GND or low
level (0-0.8VDC)
30 100 µA
* The voltage of Remote ON/OFF pin is relative to pin GND.
Switching Regulator