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LT3663IMS8E-5#TRPBF PDF预览

LT3663IMS8E-5#TRPBF

更新时间: 2024-11-08 03:17:27
品牌 Logo 应用领域
凌特 - Linear 开关控制器开关式稳压器开关式控制器电源电路开关式稳压器或控制器
页数 文件大小 规格书
16页 345K
描述
LT3663 - 1.2A Step-Down Switching Regulator with Output Current Limit; Package: MSOP; Pins: 8; Temperature Range: -40°C to 85°C

LT3663IMS8E-5#TRPBF 数据手册

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LT3663  
1.2A Step-Down  
Switching Regulator with  
Output Current Limit  
FeaTures  
DescripTion  
TheLT®3663isacurrentmodestep-downswitchingregu-  
lator with programmable output current limit. The current  
limitaccuratelycontrolsthesystempowerdissipationand  
reduces the size of the power path components.  
n
Wide Input Range:  
Operation from 7.5V to 36V  
Overvoltage Lockout Protects Circuit through 60V  
Transients  
n
Programmable Output Current Limit (0.4A to 1.2A)  
Thewideoperatinginputvoltagerangeof7.5Vto36V(60V  
transient) suits the LT3663 to a variety of input sources,  
including unregulated 12V wall adapters, 24V industrial  
supplies, and automotive power.  
n
3.3V and 5V Fixed Output Voltage Options  
n
Integrated Boost Diode  
n
Fixed Frequency, Peak Current Mode Control  
LT3663 f = 1.5MHz  
SW  
The LT3663 includes a low current shutdown mode, input  
overvoltage and undervoltage lockout, and thermal shut-  
down.Internalcompensationandboostdiodeminimizethe  
number of external exponents. 3.3V and 5V fixed output  
voltage versions are available.  
LT3663-X f = 1MHZ  
SW  
CESAT  
n
n
n
n
Low Switch V  
: 275mV at 1A  
Internally Compensated  
Thermal Protection  
Thermally Enhanced 8-Pin 2mm × 3mm DFN and  
MSOP Packages  
TheLT3663isavailablein8-leadDFNandMSOPpackages  
with exposed pads for low thermal resistance.  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
applicaTions  
n
Distributed Supply Regulation  
n
Automotive Battery Regulation  
n
Industrial Supplies  
Wall Transformer Regulation  
n
Typical applicaTion  
5V Step-Down Converter  
Efficiency  
100  
V
V
BOOST  
IN  
IN  
2.2µF  
90  
0.1µF  
LT3663  
V
= 8V  
IN  
SW  
V
= 15V  
80  
70  
60  
50  
40  
IN  
V
= 30V  
IN  
ON OFF  
28.7k  
RUN  
6.8µH  
I
SENSE  
I
V
V
OUT  
LIM  
OUT  
59k  
22µF  
FB  
GND  
11k  
0.1  
0.3  
0.5  
0.7  
0.9  
1.1  
1.3  
3663 TA01  
OUTPUT CURRENT (A)  
3663 TA01b  
3663fc  
1
For more information For more information www.linear.com/LT3663  

LT3663IMS8E-5#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LT3663IMS8E-5#PBF Linear

完全替代

LT3663 - 1.2A Step-Down Switching Regulator with Output Current Limit; Package: MSOP; Pins

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