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LTM8068

更新时间： 2023-12-20 18:44:09
品牌 Logo 应用领域
亚德诺 - ADI 转换器稳压器
页数 文件大小 规格书
20页 1814K
描述
具 LDO 后置稳压器的 3VIN 至 40VIN 隔离式 μModule DC/DC 转换器

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中文翻译

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LTM8068 数据手册

 浏览型号LTM8068的Datasheet PDF文件第1页浏览型号LTM8068的Datasheet PDF文件第2页浏览型号LTM8068的Datasheet PDF文件第4页浏览型号LTM8068的Datasheet PDF文件第5页浏览型号LTM8068的Datasheet PDF文件第6页浏览型号LTM8068的Datasheet PDF文件第7页 
LTM8068  
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full internal  
operating temperature range, otherwise specifications are at TA = 25°C, RUN = 2V (Note 4).  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
l
l
Minimum Input DC Voltage  
RUN = 2V  
3
V
V
DC Voltage  
R
FB1  
R
FB1  
R
FB1  
= 15.4k  
= 8.25k  
= 2.37k  
2.5  
5
V
V
V
OUT1  
4.75  
5.25  
3
18  
V
Quiescent Current  
V
= 0V  
µA  
mA  
IN  
RUN  
Not Switching  
7
1
V
V
V
Line Regulation  
Load Regulation  
Ripple (RMS)  
3V ≤ V ≤ 40V, I = 0.1A, RUN = 2V  
OUT  
%
%
OUT1  
OUT1  
OUT1  
IN  
0.05A ≤ I  
≤ 0.3A, RUN = 2V  
1
OUT  
I
= 0.1A, 1MHz BW  
30  
2
mV  
kV  
mA  
V
OUT  
Isolation Voltage  
(Note 3)  
Shorted  
Input Short-Circuit Current  
RUN Pin Input Threshold  
RUN Pin Current  
V
80  
1.214  
2.5  
OUT1  
RUN Pin Falling  
1.18  
1.19  
1.25  
V
V
= 1V  
= 1.3V  
µA  
µA  
RUN  
RUN  
0.1  
2.3  
LDO (V ) Minimum Input DC Voltage  
OUT2  
(Note 5)  
1.5  
V
V
Voltage Range  
V
V
= 16V, R Open, No Load (Note 5)  
= 16V, R = 41.2k, No Load (Note 5)  
1.22  
17.7  
V
V
OUT2  
OUT1  
OUT1  
FB2  
FB2  
FB2 Pin Voltage  
V
V
= 2V, I  
= 2V, I  
= 1mA (Note 5)  
= 1mA (Note 5)  
1.22  
V
V
OUT1  
OUT1  
OUT2  
OUT2  
l
1.25  
5
V
V
Line Regulation  
Load Regulation  
2V < V  
< 16V, I = 1mA (Note 5)  
OUT2  
1
2
mV  
mV  
OUT2  
OUT2  
OUT1  
V
= 5V, 10mA ≤ I  
≤ 300mA (Note 5)  
10  
OUT1  
OUT2  
LDO Dropout Voltage  
I
I
I
= 10mA (Note 5)  
= 100mA (Note 5)  
= 300mA (Note 5)  
0.25  
0.34  
0.43  
V
V
V
OUT2  
OUT2  
OUT2  
V
Ripple (RMS)  
C
= 0.01µF, I  
= 300mA, BW = 100Hz to 100kHz (Note 5)  
20  
µV  
RMS  
OUT2  
BYP  
OUT2  
Note 1: Stresses beyond those listed under Absolute Maximum Ratings  
may cause permanent damage to the device. Exposure to any Absolute  
Maximum Rating condition for extended periods may affect device  
reliability and lifetime.  
Note 4: The LTM8068E is guaranteed to meet performance specifications  
from 0°C to 125°C. Specifications over the –40°C to 125°C internal  
temperature range are assured by design, characterization and correlation  
with statistical process controls. LTM8068I is guaranteed to meet  
specifications over the full –40°C to 125°C internal operating temperature  
range. Note that the maximum internal temperature is determined by  
specific operating conditions in conjunction with board layout, the rated  
package thermal resistance and other environmental factors.  
Note 2: V + V  
is defined as the sum of:  
OUT1  
IN  
(V – GND) + (V  
– V  
)
OUTN  
IN  
OUT1  
Note 3: The LTM8068 isolation test voltage of either 2kVAC or its  
equivalent of 2.83kVDC is applied for one second.  
Note 5: V  
= 0V (Flyback not running), but the V  
post regulator is  
RUN  
OUT2  
powered by applying a voltage to V  
.
OUT1  
Rev. C  
3
For more information www.analog.com  
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