LMW78_12-0.5 [GAPTEC]
Wide Input Non-Isolated & Regulated, Single Output;
| 型号： | LMW78_12-0.5 |
| 厂家： | 
GAPTEC |
| 描述： | Wide Input Non-Isolated & Regulated, Single Output |
| 文件： | 总4页 (文件大小：1888K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
LMW78_0.5 Series
Wide Input Non-Isolated & Regulated, Single Output
Switching Regulator
Efficiency up to 95%
Ultra wide input voltage
range can up to 8:1
Operating temperature:
-40°C ~ +85°C
Pin-out compatible with
LM78XX Linear
Short circuit protection (SCP),
The LMW78_0.5 series high efficiency switching regulators are ideally
suited to replace LM78xx linear regulators and are pin compatible. It
has ultra wide input voltage range, the efficiency of up to 95% means
that very little energy is wasted as heat so there is no need for any
heatsinks with their additional space and mounting costs.
thermal shutdown
Low ripple and noise
Micro miniature SIP package,
meet UL94-V0 requirement
No heatsink required
Industry standard pinout
MTBF>2,000,000Hours
Model selection:
LMW78_yy-pp
LM=Series; W=case; ##=Vout; pp=output current
Example:
LMW78_05-0.5
LM=Series; W=wide input; ##= 5Vout; pp=0.5A
RoHS
Common specifications
Temperature rise at full load:
Cooling:
Output specifications
25°C MAX, 15°C TYP
Item
Test conditions
100% load
Min
Typ
2
Max
3
Units
%
Free air convection
-40°C~+85°C
Output voltage
accuracy
Operating temperature range
(power derating above 71°C):
Line regulation
Load regulation
Ripple + Noise
Vin= min. to max. at
full load
0.4
0.3
20
1.0
0.6
60
%
Storage temperature range:
Lead temperature:
Operating case temperature:
Storage humidity range:
Case material:
-55°C ~+125°C
From 10% to 100%
load
%
300°C MAX, 1.5mm from case for 10 sec
100°C MAX, 65°C TYP
< 95%
20MHz bandwidth,
from 10% to 100%
Load (refer to figure 2)
mVp-p
Plastic [UL94-V0]
Short circuit input
power
Vin=Nominal
0.72
1.2
W
MTBF:
>3,500,000 hours: 25°C, MIL-HDBK-217F
>1,500,000 hours: 71°C, MIL-HDBK-217F
Short circuit
protection
Continuous, automatic recovery
Hop swap:
Not supported
60 °C/W
Thermal resistance:
EMI conducted (Refer to figure 7):
RFI conducted:
Switching frequency 100% full load
120
800
KHz
EN55022, CLASS B
EN55022, CLASS B
IEC/EN 61000-4-2 level 4
EN-60950-1 standards
4g
Output current limit Vin=Nominal
700
1
1200
5
mA
mA
Quiescent current
Thermal shutdown
Vin=Nominal , Min.
Load
Electrostatic discharge:
Safety approvals:
Weight:
160
°C
Temperature
coefficient
-40 °C to +85 °C
ambient
0.015
%/°C
Tendencies load
From 10% to 100%
Load
100
1.5
mV
ms
Note:
1.0
1. The load shouldn‘t be less than 10%, and the output external capacitor should
not be too large (recommend <10μF), otherwise ripple will increase
dramatically.
Max capacitance
load
100
μF
2. Operation under 10% load will not damage the converter; However, they may
not
meet all specification listed
Note: ”GND” Pin can not vacant, or it will damage the module.
3. All specifications measured at Ta=25°C, humidity<75%, nominal input voltage
and rated output load unless otherwise specified.
4. In this datasheet, all the test methods of indications are based on corporate
Part Number
Input Voltage Range
[VDC]
Output Voltage
[VDC]
Output Current
[mA, Max]
Efficiency
[Vin. min]
Efficiency
[Vin. max]
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
9.0-72.0
9.0-72.0
9.0-72.0
14.0-72.0
17.0-72.0
20.0-72.0
36.0-72.0
3.3
5.0
500
500
500
500
500
500
500
82
87
91
75
81
6.5
84
86
89
90
91
9.0
92
93
94
95
12.0
15.0
24.0
Add suffix “L” for 90° bend pins, for example: LMW78_05-1.0L.
Page 1 of 4
LMW78_0.5 – Rev. 2017-1.4
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMW78_0.5 Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Typical characteristics
Typical application circuit
figure 1
figure 2
Note:
1. The regulator proposed to establish the input voltage by soft-start, no plug
and
play, if the input voltage changes from low voltage to
high voltage abruptly, the
regulator might be damaged.
2. If the applications is high-voltage input, the regulator must add an external
capacitor C1(≤47μF/100V),to prevent voltage spikes caused by damage to the
module.
3. No parallel connection.
Application example
Modules protect recommended cir-
High voltage input, multiple outputs, with greater load (figure 3)
figure 4
Note:
1. The input current amount of the back-grade regulator and the pre-class load
should be less than or equal the max load current of the pre-class regulator.
2. If further filtering is required, please add components as per the above
circuit (We recommend not to add components), if request, please make sure
the capacitors C1 ≤47μF,C2≤10μF more close to the back-grade regulator.
Test configurations (TA=25°C)
1
Full load output ripple & noise measured graph
2
Load transient response waveform
figure 5
figure 6
Page 2 of 4
LMW78_0.5 – Rev. 2017-1.4
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMW78_0.5 Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
EMC recommended circuit
figure 7
Characteristics curve
Efficiency
Ripple
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
LMW78_03-0.5
LMW78_05-0.5
LMW78_6.5-0.5
LMW78_09-0.5
LMW78_12-0.5
LMW78_15-0.5
LMW78_24-0.3
Page 3 of 4
LMW78_0.5 – Rev. 2017-1.4
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
LMW78_0.5 Series
Wide Input Non-Isolated & Regulated, Single Positive/Negative Output
Mechanical dimensions
Recommended footprint
LMW78_xx_0.5
LMW78_xx_0.5
LMW78_xx_0.5L
Note:
Unit: mm[inch]
Pin selection tolerances: 0.10mm [ 0.004inch]
General tolerances: 0.25mm [ 0.010inch]
LMW78_xx_0.5L
Tube outline dimensions
LMW78_xx_0.5L
LMW78_xx_0.5
Note:
Unit: mm[inch]
Pin selection tolerances: 0.10mm [ 0.004inch]
General tolerances: 0.50mm [ 0.020inch]
Note:
Unit: mm[inch]
General tolerances: 0.50mm [ 0.020inch]
L=530mm [20.866inch]
Devices per tube quantity: 44pcs
L=220mm [8.661inch]
Devices per tube quantity: 17pcs
Short tube inner packaging dimensions: L*W*H=255*170*80mm
Short tube outer packaging dimensions: L*W*H=375*280*270mm
Long tube inner packaging dimensions L*W*H=580*200*100mm
Long tube outer packaging dimensions (with two inner packaging boxes):
L*W*H=600*215*220mm
Long tube outer packaging dimensions (with two inner packaging boxes):
L*W*H=600*215*325mm
Page 4 of 4
LMW78_0.5 – Rev. 2017-1.4
Specifications subject to change without notice.
GAPTEC-Electronic GmbH & Co. KG
sales@gaptec-electronic.com – www.gaptec-electronic.com
©2020 ICPDF网 联系我们和版权申明