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LT3470AIDDB-TRPBF PDF预览

LT3470AIDDB-TRPBF

更新时间： 2024-02-24 17:32:13
品牌 Logo 应用领域
凌特 - Linear 调节器二极管
页数 文件大小 规格书
20页 208K
描述
Micropower Buck Regulator with Integrated Boost and Catch Diodes

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中文翻译

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LT3470AIDDB-TRPBF 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：,
针数：8Reach Compliance Code：unknown
Base Number Matches：1

LT3470AIDDB-TRPBF 数据手册

 浏览型号LT3470AIDDB-TRPBF的Datasheet PDF文件第1页浏览型号LT3470AIDDB-TRPBF的Datasheet PDF文件第2页浏览型号LT3470AIDDB-TRPBF的Datasheet PDF文件第4页浏览型号LT3470AIDDB-TRPBF的Datasheet PDF文件第5页浏览型号LT3470AIDDB-TRPBF的Datasheet PDF文件第6页浏览型号LT3470AIDDB-TRPBF的Datasheet PDF文件第7页 
LT3470A  
ELECTRICAL CHARACTERISTICS  
The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C.  
VIN = 10V, VSHDN = 10V, VBOOST = 15V, VBIAS = 3V unless otherwise specified.  
PARAMETER  
CONDITIONS  
MIN  
TYP  
MAX  
UNITS  
Minimum Input Voltage  
Quiescent Current from V  
●
●
4
V
V
V
V
= 0.2V  
SHDN  
BIAS  
BIAS  
0.1  
10  
40  
0.5  
18  
55  
μA  
μA  
μA  
IN  
= 3V, Not Switching  
= 0V, Not Switching  
Quiescent Current from Bias  
V
V
V
= 0.2V  
0.1  
30  
0.5  
60  
μA  
μA  
μA  
SHDN  
= 3V, Not Switching  
= 0V, Not Switching  
●
●
●
BIAS  
BIAS  
0.1  
1.5  
FB Comparator Trip Voltage  
FB Pin Bias Current (Note 3)  
V
FB  
V
FB  
Falling  
1.228  
1.250  
1.265  
V
= 1V  
35  
35  
80  
150  
nA  
nA  
FB Voltage Line Regulation  
Minimum Switch Off-Time (Note 5)  
Maximum Duty Cycle  
4V < V < 40V  
0.0006  
500  
95  
0.02  
%/V  
ns  
IN  
●
90  
%
Switch Leakage Current  
0.7  
150  
0.9  
440  
280  
600  
0.2  
690  
0.2  
1.7  
2.3  
50  
1.5  
μA  
mV  
V
Switch V  
Switch V  
I
= 100mA  
SW  
CESAT  
CESAT  
Without Boost  
V
V
V
= V  
1.2  
BOOST  
SW  
Switch Top Current Limit  
Switch Bottom Current Limit  
Catch Schottky Drop  
= 0V  
320  
560  
mA  
mA  
mV  
μA  
mV  
μA  
V
FB  
FB  
= 0V  
I
= 100mA  
= 10V  
SW  
Catch Schottky Reverse Leakage  
Boost Schottky Drop  
V
2
775  
2
SW  
I
= 50mA  
= 10V, V  
BIAS  
Boost Schottky Reverse Leakage  
Minimum Boost Voltage (Note 4)  
BOOST Pin Current  
V
= 0V  
BIAS  
SW  
●
2.2  
5
I
= 100mA  
mA  
mA  
μA  
V
SW  
Bias Pin Preload  
V
V
= 10V  
BOOST  
SHDN  
SHDN Pin Current  
= 2.5V  
1
5
SHDN Input Voltage High  
SHDN Input Voltage Low  
2
0.2  
V
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 2: The LT3470AE is guaranteed to meet performance specifications  
from 0°C to 85°C. Specifications over the –40°C to 85°C operating  
temperature range are assured by design, characterization and correlation  
with statistical process controls. The LT3470AI specifications are  
guaranteed over the –40°C to 125°C temperature range.  
Note 3: Bias current flows out of the FB pin.  
Note 4: This is the minimum voltage across the boost capacitor needed to  
guarantee full saturation of the switch.  
Note 5: This parameter is assured by design and correlation with statistical  
process controls.  
3470afa  
3
1234567...20

中文翻译

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