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LTC1174HVIS8#TR PDF预览

LTC1174HVIS8#TR

更新时间： 2024-11-22 21:01:19
品牌 Logo 应用领域
凌特 - Linear 开关光电二极管
页数 文件大小 规格书
20页 236K
描述
LTC1174 - High Efficiency Step-Down and Inverting DC/DC Converter; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

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中文翻译

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LTC1174HVIS8#TR 技术参数

是否Rohs认证： 不符合生命周期：Transferred
零件包装代码：SOIC包装说明：SOP, SOP8,.25
针数：8Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.08模拟集成电路 - 其他类型：SWITCHING REGULATOR
控制模式：CURRENT-MODE控制技术：CONSTANT OFF TIME
最大输入电压：16 V最小输入电压：4 V
标称输入电压：9 VJESD-30 代码：R-PDSO-G8
JESD-609代码：e0长度：4.9025 mm
湿度敏感等级：1功能数量：1
端子数量：8最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：1 A
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP8,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：235
认证状态：Not Qualified座面最大高度：1.752 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：BUCK最大切换频率：200 kHz
技术：CMOS温度等级：INDUSTRIAL
端子面层：Tin/Lead (Sn/Pb)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：20宽度：3.899 mm
Base Number Matches：1

LTC1174HVIS8#TR 数据手册

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LTC1174  
LTC1174-3.3/LTC1174-5  
High Efficiency  
Step-Down and Inverting  
DC/DC Converter  
U
FEATURES  
DESCRIPTIO  
The LTC®1174 is a simple current mode DC/DC converter  
ideally suited for 9V to 5V, 5V to 3.3V or 5V to –5V  
operation. With an internal 0.9Ω switch (at a supply  
voltage of 9V), the LTC1174 requires only four external  
components to construct a complete high efficiency  
DC/DC converter.  
■
High Efficiency: Up to 94%  
■
Peak Inductor Current Independent of  
Inductor Value  
Short-Circuit Protection  
■
■
Optimized for 5V to –5V Applications  
■
Wide VIN Range: 4V to 18.5V  
■
Low Dropout Operation  
UnderanoloadconditiontheLTC1174drawsonly130µA.  
In shutdown, it draws a mere 1µA making this converter  
ideal for current sensitive applications. In dropout, the  
internal P-channel MOSFET switch is turned on continu-  
ously allowing the user to maximize the life of the battery  
source.  
■
Low-Battery Detector  
■
Pin Selectable Current Limit  
■
Internal 0.9Ω Power Switch: VIN = 9V  
■
Only Four External Components Required  
■
130µA Standby Current  
■
Active Low Micropower Shutdown  
The maximum inductor current of the LTC1174 family is  
pin selectable to either 340mA or 600mA, optimizing  
efficiency for a wide range of applications. Operation up to  
200kHz permits the use of small surface mount inductors  
and capacitors.  
U
APPLICATIO S  
■
Distributed Power Systems  
■
Step-Down Converters  
■
Inverting Converters  
For applications requiring higher output current or ultra-  
high efficiency, see the LTC1148 data sheet.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
■
Memory Backup Supply  
■
Portable Instruments  
■
Battery-Powered Equipment  
U
TYPICAL APPLICATIO  
High Efficiency Step-Down Converter  
LTC1174-5 Efficiency  
100  
V
IN  
9V  
95  
15µF*  
25V  
+
6
V
= 6V  
IN  
V
IN  
×3  
3
2
8
1
5
90  
85  
80  
75  
70  
LB  
LB  
SHUTDOWN  
IN  
V
= 9V  
IN  
V
OUT  
OUT  
SW  
5V  
175mA  
7
I
PGM  
100µH†  
LTC1174-5  
+
100µF**  
10V  
1N5818  
GND  
4
L = 100µH  
V
= 5V  
= 0V  
OUT  
PGM  
1174 TA01  
I
(3) AVX TPSD156K025  
AVX TPSD107K010  
*
**  
1
10  
LOAD CURRENT (mA)  
100 200  
† COILTRONICS CTX100-4  
1174 TA02  
1174fe  
1
1234567...20

中文翻译

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LTC1174IS8#PBF Linear

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