LMT78 [GAPTEC]
Wide input, non-isolated & regulated, single output, SMD package;型号: | LMT78 |
厂家: | GAPTEC |
描述: | Wide input, non-isolated & regulated, single output, SMD package |
文件: | 总5页 (文件大小:1938K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
LMT78_0.5R series
Wide input, non-isolated & regulated, single output, SMD package
Switching Regulator
Efficiency up to 95%
No-load input current
as low as 0.2mA
Remote ON/OFF control
Output short-circuit
protection (SCP)
Operating ambient temp.
range -40°C to +85°C
IEC62368, UL62368, EN62368
approved
The LMT78_0.5R 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 appli-
cations such as industrial control, instrumentation and electric power.
0.5AMP SMD package
Wide input voltage range
(4,75V - 36V)
Adjustable output voltage
UL-62368-1 (E347551)
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
Output voltage
accuracy
Input voltage range at
full load
Continuous, automatic recovery
-40°C ~ +85°C
• 1.5/1.8/2.5/3.3VDC
• Others
2
2
4
3
%
%
Line regulation
Load regulation
Input voltage range at
full load
0.2
0.4
%
-55°C ~ +125°C
300°C MAX, 1.5mm from case for 10 sec
100°C MAX
Nominal input, 10% to
100% load
• 1.5/1.8/2.5VDC
• Others
Operating case temperature:
Reflow Soldering Temperature:
0.6
0.3
%
%
Peak temp. ≤ 245°C,maximum duration
time ≤ 60s at 217°C. For actual
application, please refer to
Ripple + Noise*
20MHz bandwidth
1.5/1.8/2.5/3.3VDC
• 20% - 100% load
IPC/JEDEC J-STD-020D.1
20
20
50
50
mVp-p
Storage humidity range:
Case material:
< 95%
Plastic [UL94-V0]
> 2,000,000 hours
1.5g
Others
• 10% - 100% load
mVp-p
%/°C
MTBF (MIL-HDBK-217F,+25°C):
Package weight:
Temperature
coefficient
- 40°C to + 85°C
ambient
0.03
Dimensions:
15.24 * 11.40 * 8.25mm
J-STD-020D standard - Level 1
Transient response Nominal input voltage,
deviation 25% load step change
50
200
1
mV
ms
MSL (Moisture sensitivity level):
Transient recovery Nominal input voltage,
0.2
time
25% load step change
Input specifications
Vadj
input voltage range
10
%Vo
Item
Test conditions
Min Typ
0.2
Max
1.5
Units
mA
Switching
frequency
Full load, nominal
input voltage
• LMT78_1.5-0.5R
• Others
No load input
current
370
700
KHz
KHz
Reverse polarity
input
Forbidden
* Ripple and noise tested with “parallel cable” method, please refer to DC-DC
converter Application Notes for specific operation methods.
Input filter
Capacitor
Remote ON/OFF*
• Module switch on
suspended or connected to TTL
high level (3.2-8VDC)
Example:
LMT78_05-0.5R
LM = Series; T = SMT case; 05 = 5Vout; 0.5 = 0.5A; R = Revised
• Module switch off
pin connected to GND or low
level (0-0.8VDC)
• Input current when
switched off
30
100
µA
* The voltage of Remote ON/OFF pin is relative to pin GND.
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
LMT78_0.5R – Rev. 2021-1.6
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMT78_0.5R series
Wide input, non-isolated & regulated, single output, SMD package
EMC specifications
EMI
CE
CISPR32/EN55032
CISPR32/EN55032
IEC/EN61000-4-2
IEC/EN61000-4-3
IEC/EN61000-4-4
IEC/EN61000-4-5
IEC/EN61000-4-6
CLASS B
CLASS B
Contact 4KV
10V/m
(see EMC recommended circuit, 2 )
(see EMC recommended circuit, 2 )
perf. Criteria B
EMI
RE
EMS
EMS
EMS
EMS
EMS
ESD
RS
perf. Criteria A
EFT
Surge
CS
2KV
perf. Criteria B (see EMC recommended circuit, 1 )
line to line 1KV perf. Criteria B (see EMC recommended circuit, 1 )
3 Vr.m.s perf. Criteria A
Part Number
Input Voltage [VDC]
Output Voltage
Output Current
[mA, Max]
Capacitive load
[µF, max]
Efficiency
[Vin. max]
Nominal
Range
[VDC]
1.5
1.8
2.5
3.3
5
LMT78_1.5-0.5R
LMT78_1.8-0.5R
LMT78_02-0.5R
LMT78_03-0.5R
LMT78_05-0.5R
LMT78_6.5-0.5R
LMT78_09-0.5R
LMT78_12-0.5R
LMT78_15-0.5R
12
4.75-28
4.75-28
4.75-32
4.75-36
6.5-36
8-36
500
500
500
500
500
500
500
500
500
680
680
680
680
680
680
680
680
680
76
76
81
12
12
24
24
24
24
24
24
86
90
92
93
94
95
6.5
9
12-36
15-36
12
19-36
15
Note: For input voltage higher than 30VDC, a 22uF/50V input capacitor is required.
Typical characteristics
Page 2 of 5
LMT78_0.5R – Rev. 2021-1.6
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMT78_0.5R series
Wide input, non-isolated & regulated, single output, SMD package
Efficiency
LMT78_05-0.5R
LMT78_05-0.5R
LMT78_15-0.5R
LMT78_15-0.5R
Typical application circuit
Note:
1. C1 and C2 are required and should be connected close to the pin terminal
of the module.
2. The capacitance of C1 and C2 refer to table 1, it can be increased properly
if required, and tantalum or low ESR electrolytic capacitors may also
suffice.
3. Cannot be used in parallel for output and hot swap.
To reduce the output ripple furtherly, it is suggested to connect a “LC”
filter at the output terminal, and recommended value of L is 10µH-47µH.
Part number
C1
C2
Ra1/Ra2
(Vadj resistance)
(ceramic capacitor) (ceramic capacitor)
LMT78_1.5-0.5R
LMT78_1.8-0.5R
LMT78_02-0.5R
LMT78_03-0.5R
LMT78_05-0.5R
LMT78_6.5-0.5R
LMT78_09-0.5R
LMT78_12-0.5R
LMT78_15-0.5R
10µF/50V
10µF/50V
10µF/50V
10µF/50V
10µF/50V
10µF/50V
10µF/50V
10µF/50V
10µF/50V
22µF/10V
22µF/10V
22µF/10V
22µF/10V
22µF/16V
22µF/16V
22µF/25V
22µF/25V
22µF/25V
Refer to Vadj
resistance
calculation
Table 1
Page 3 of 5
LMT78_0.5R – Rev. 2021-1.6
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMT78_0.5R series
Wide input, non-isolated & regulated, single output, SMD package
LC filter application circuit
EMC solution-recommended circuit
FUSE
Selected based on the actual
input current from the customer
MOV
LDM1
C0
S20K30
82µH
680µF/50V
refer to Table 1
4.7µF/50V
12µH
C1/C2
C5
LDM2
Note: Part ① in the Fig. 4 is for EMS test, part ② is for EMI filtering; parts ① and ②
can be added based on actual requirement.
Application of Vadj and calculation of Vadj resistance
Vout (V)
R1 (KΩ)
7.5
35.7
27
R2 (KΩ)
7.5
R3 (KΩ)
15
Vref (V)
0.75
1.5
1.8
2.5
3.3
5
26.29
11.858
9.9
100
51
0.765
0.765
0.765
0.765
0.765
0.765
0.765
0.765
33
47
75
13.5
75
6.5
9
75
10
51
51
4.7
27
12
75
5.1
27
15
82
4.423
27
Note: The 1.5VDC output model only support Vadj up,do not support Vadj down.
Page 4 of 5
LMT78_0.5R – Rev. 2021-1.6
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMT78_0.5R series
Wide input, non-isolated & regulated, single output, SMD package
Mechanical dimensions
Note:
Unit: mm[inch]
Pin selection tolerances: 0.10mm [ 0.004inch]
General tolerances: 0.25mm [ 0.010inch]
Page 5 of 5
LMT78_0.5R – Rev. 2021-1.6
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
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