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LMW78_05-0.5

更新时间： 2024-12-01 02:48:11
品牌 Logo 应用领域
GAPTEC /
页数 文件大小 规格书
4页 1888K
描述
Wide Input Non-Isolated & Regulated, Single Output

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LMW78_05-0.5 数据手册

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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  
1234

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