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LTC3703IGN#PBF PDF预览

LTC3703IGN#PBF

更新时间: 2024-11-06 13:09:51
品牌 Logo 应用领域
凌特 - Linear 开关软启动控制器
页数 文件大小 规格书
26页 307K
描述
LTC3703 - 100V Synchronous Switching Regulator Controller; Package: SSOP; Pins: 16; Temperature Range: -40°C to 85°C

LTC3703IGN#PBF 技术参数

是否Rohs认证:符合生命周期:Transferred
零件包装代码:SSOP包装说明:SSOP, SSOP16,.25
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.33Samacsys Confidence:4
Samacsys Status:ReleasedSamacsys PartID:1087412
Samacsys Pin Count:16Samacsys Part Category:Integrated Circuit
Samacsys Package Category:Small Outline PackagesSamacsys Footprint Name:16-Lead Plastic SSOP
Samacsys Released Date:2019-12-04 10:53:24Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING CONTROLLER控制模式:VOLTAGE-MODE
控制技术:PULSE WIDTH MODULATION最大输入电压:15 V
最小输入电压:9.3 V标称输入电压:10 V
JESD-30 代码:R-PDSO-G16JESD-609代码:e3
长度:4.89 mm湿度敏感等级:1
功能数量:1端子数量:16
最高工作温度:125 °C最低工作温度:-40 °C
最大输出电流:5 A封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装等效代码:SSOP16,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
峰值回流温度(摄氏度):260认证状态:Not Qualified
座面最大高度:1.75 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:PUSH-PULL
最大切换频率:330 kHz技术:CMOS
温度等级:AUTOMOTIVE端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.635 mm
端子位置:DUAL处于峰值回流温度下的最长时间:30
宽度:3.899 mmBase Number Matches:1

LTC3703IGN#PBF 数据手册

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LT3742  
Dual, 2-Phase Step-Down  
Switching Controller  
FeaTures  
DescripTion  
TheLT®3742isadualstep-downDC/DCswitchingregulator  
controllerthatdriveshighsideN-channelpowerMOSFETs.  
A 500kHz fixed frequency current mode architecture pro-  
vides fast transient response with simple loop compensa-  
tion components and cycle-by-cycle current limiting. The  
output stages of the two controllers operate 180° out of  
phase to reduce the input ripple current, minimizing the  
noise induced on the input supply, and allowing less input  
capacitance.  
n
Wide Input Voltage Range: 4V to 30V  
n
Wide Output Voltage Range: 0.8V to V  
IN  
n
Low Shutdown I : 20µA  
Q
n
Out-of-Phase Controllers Reduce Required Input  
Capacitance and Power Supply Induced Noise  
0.8V 1.5% Voltage Reference  
n
n
n
500kHz Current Mode Fixed Frequency Operation  
Internal Boost Converter Provides Bias Rail for  
N-channel MOSFET Gate Drive  
Power Good Voltage Monitor for Each Output  
Programmable Soft-Start  
24-Lead 4mm × 4mm × 0.75mm Package  
n
n
n
AninternalboostregulatorgeneratesabiasrailofV +7V  
IN  
to provide gate drive for the N-channel MOSFETs allowing  
low dropout and 100% duty cycle operation. The LT3742  
can be used for applications where both controllers need  
to operate independently, or where both controllers are  
used to provide a single higher current output.  
applicaTions  
n
Satellite and Cable TV Set-Top Boxes  
n
n
n
The device is available in a thermally enhanced 4mm ×  
4mm QFN package.  
Distributed Power Regulation  
Automotive Systems  
Super Capacitor Charger  
L, LT, LTC, LTM, Linear Technology, the Linear logo, PolyPhase and Burst Mode are registered  
trademarks and No R  
is a trademark of Linear Technology Corporation. All other  
SENSE  
trademarks are the property of their respective owners.  
Typical applicaTion  
8V and 5V Dual Step-Down Converter  
Efficiency vs Load Current  
100  
90  
80  
70  
60  
50  
40  
8V  
OUT  
10µH  
V
4.7µF  
IN  
14V  
45.3k  
20.0k  
5V  
OUT  
V
SWB BIAS  
IN  
UVLO  
1µF  
LT3742  
V
V
IN  
IN  
10µF  
10µF  
G1  
G2  
6.5µH  
6.5µH  
0.010Ω  
0.010Ω  
V
V
5V  
4A  
OUT1  
8V  
OUT2  
SW1  
SW2  
+
+
4A  
SENSE1  
SENSE1  
FB1  
SENSE2  
1.8k  
1.05k  
200Ω  
2.5  
LOAD CURRENT (A)  
3
0
0.5  
1
1.5  
2
3.5  
4
SENSE2  
FB2  
47µF  
47µF  
3742 TA01b  
200Ω  
PG1  
PG1  
PG2  
PG2  
RUN/SS1  
RUN/SS2  
V
V
C2  
C1  
30k  
20k  
RUN1  
RUN2  
GND  
1nF  
1000pF  
1000pF  
1nF  
3742 TA01a  
3742fa  
1

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型号 品牌 替代类型 描述 数据表
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