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LTM8048

更新时间： 2023-12-20 18:44:05
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 260K
描述
具 LDO 后置稳压器的 3.1VIN 至 32VIN 隔离式 μModule DC/DC 转换器

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中文翻译

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LTM8048 数据手册

 浏览型号LTM8048的Datasheet PDF文件第1页浏览型号LTM8048的Datasheet PDF文件第2页浏览型号LTM8048的Datasheet PDF文件第4页浏览型号LTM8048的Datasheet PDF文件第5页浏览型号LTM8048的Datasheet PDF文件第6页浏览型号LTM8048的Datasheet PDF文件第7页 
LTM8048  
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating  
temperature range, otherwise specifications are at TA = 25°C, RUN = 12V (Note 3).  
PARAMETER  
CONDITIONS  
BIAS = V  
MIN  
TYP  
MAX  
UNITS  
l
l
Minimum Input DC Voltage  
3.1  
V
IN  
V
DC Voltage  
R
ADJ1  
R
ADJ1  
R
ADJ1  
= 12.4k  
= 6.98k  
= 3.16k  
2.5  
5
12  
V
V
V
OUT1  
4.75  
5.25  
1
V
IN  
Quiescent Current  
V
= 0V  
µA  
µA  
RUN  
Not Switching  
850  
1.7  
1.5  
20  
V
OUT1  
V
OUT1  
V
OUT1  
Line Regulation  
Load Regulation  
Ripple (RMS)  
6V ≤ V ≤ 31V, I = 0.15A  
OUT  
%
%
IN  
0.05A ≤ I  
≤ 0.2A  
OUT  
I
= 0.1A  
mV  
mA  
V
OUT  
Input Short Circuit Current  
RUN Pin Input Threshold  
RUN Pin Current  
V
Shorted  
30  
OUT1  
RUN Pin Rising  
1.18  
1.24  
1.30  
V
RUN  
V
RUN  
= 1V  
= 1.3V  
2.5  
0.1  
µA  
µA  
SS Threshold  
0.7  
–10  
8
V
µA  
mA  
V
SS Sourcing Current  
BIAS Current  
SS = 0V  
V
= 12V, BIAS = 5V, I  
= 100mA  
LOAD1  
IN  
Minimum BIAS Voltage (Note 4)  
I
= 100mA  
3.1  
2.3  
LOAD1  
LDO (V  
) Minimum Input DC Voltage  
OUT2  
(Note 5)  
1.8  
V
V
OUT2  
Voltage Range  
V
OUT1  
V
OUT1  
= 16V, R  
= 16V, R  
Open, No Load (Note 5)  
= 41.2k, No Load (Note 5)  
1.22  
15.8  
V
V
ADJ2  
ADJ2  
ADJ2 Pin Voltage  
V
OUT1  
V
OUT1  
V
OUT1  
= 2V, I  
= 2V, I  
= 2V, I  
= 1mA (Note 5)  
= 1mA, E- and I-Grades (Note 5)  
= 1mA, MP-Grade (Note 5)  
1.22  
V
V
V
OUT2  
OUT2  
OUT2  
l
l
1.19  
1.15  
1.25  
1.29  
V
V
Line Regulation  
Load Regulation  
2V < V  
< 16V, I = 1mA (Note 5)  
OUT2  
1
2
5
mV  
mV  
OUT2  
OUT2  
OUT1  
V
OUT1  
= 5V, 10mA < I  
= 300mA (Note 5)  
OUT2  
10  
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
BYP  
= 0.01µF, I  
= 300mA, BW = 100Hz to 100kHz (Note 5)  
20  
µV  
RMS  
OUT2  
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.  
range. The LTM8048MP is guaranteed to meet specifications over the  
full –55°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: The LTM8048 isolation is tested at 725VDC for one second in each  
polarity.  
Note 4: This is the BIAS pin voltage at which the internal circuitry is  
powered through the BIAS pin and not the integrated regulator. See BIAS  
Pin Considerations for details.  
Note 3: The LTM8048E 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. LTM8048I is guaranteed to meet  
specifications over the full –40°C to 125°C internal operating temperature  
Note 5: V  
powered by applying a voltage to V  
= 0V (Flyback not running), but the V  
post regulator is  
RUN  
OUT2  
.
OUT1  
8048fg  
3
For more information www.linear.com/LTM8048  
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