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Datasheet > 电源电路 > 开关式稳压器或控制器> LTC3805EMSE-5#PBF
LTC3805EMSE-5#PBF PDF预览

LTC3805EMSE-5#PBF

更新时间： 2024-01-03 14:44:21
品牌 Logo 应用领域
凌特 - Linear 控制器
页数 文件大小 规格书
20页 206K
描述
LTC3805-5 - Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller; Package: MSOP; Pins: 10; Temperature Range: -40°C to 85°C

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中文翻译

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LTC3805EMSE-5#PBF 技术参数

是否Rohs认证：符合生命周期：Transferred
零件包装代码：MSOP包装说明：HTSSOP, TSSOP10,.19,20
针数：10Reach Compliance Code：compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.1Is Samacsys：N
模拟集成电路 - 其他类型：SWITCHING CONTROLLER控制模式：CURRENT-MODE
控制技术：PULSE WIDTH MODULATION最大输入电压：8.9 V
最小输入电压：4.15 V标称输入电压：5 V
JESD-30 代码：S-PDSO-G10JESD-609代码：e3
长度：3 mm湿度敏感等级：1
功能数量：1端子数量：10
最高工作温度：85 °C最低工作温度：
封装主体材料：PLASTIC/EPOXY封装代码：HTSSOP
封装等效代码：TSSOP10,.19,20封装形状：SQUARE
封装形式：SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：250
认证状态：Not Qualified座面最大高度：1.1 mm
子类别：Switching Regulator or Controllers表面贴装：YES
切换器配置：SINGLE最大切换频率：700 kHz
技术：CMOS温度等级：OTHER
端子面层：Matte Tin (Sn)端子形式：GULL WING
端子节距：0.5 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3 mm
Base Number Matches：1

LTC3805EMSE-5#PBF 数据手册

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LTC3805-5  
Adjustable Frequency  
Current Mode Flyback/  
Boost/SEPIC DC/DC Controller  
FEATURES  
DESCRIPTION  
The LTC®3805-5 is a current mode DC/DC controller de-  
signed to drive an N-channel MOSFET in flyback, boost  
and SEPIC converter applications. Operating frequency  
and slope compensation can be programmed by external  
resistors. Programmable overcurrent sensing protects  
the converter from overload and short-circuit conditions.  
Soft-start can be programmed using an external capacitor  
and the soft-start capacitor also programs an automatic  
restart feature.  
■
V and V  
Limited Only by External Components  
IN  
OUT  
■
■
■
4.5V Undervoltage Lockout Threshold  
Adjustable Slope Compensation  
Adjustable Overcurrent Protection with Automatic  
Restart  
■
Adjustable Operating Frequency (70kHz to 700kHz)  
with One External Resistor  
Synchronizable to an External Clock  
±±.5ꢀ ꢁeference Accuracy  
Only ±00mV Current Sense Voltage Drop  
ꢁUN Pin with Precision Threshold and Adjustable  
Hysteresis  
Programmable Soft-Start with One External Capacitor  
Low Quiescent Current: 360μA  
Small ±0-Lead MSOP and 3mm × 3mm DFN  
■
■
■
■
The LTC3805-5 provides ±±.5ꢀ output voltage accuracy  
and consumes only 360μA of quiescent current during  
normaloperationandonly40μAduringmicropowerstart-  
up. Using a 9.5V internal shunt regulator, the LTC3805-5  
■
■
■
can be powered from a high V through a resistor or it  
IN  
can be powered directly from a low impedance DC voltage  
from 4.7V to 8.8V.  
APPLICATIONS  
The LTC3805-5 is available in the ±0-lead MSOP package  
and the 3mm × 3mm DFN package.  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
■
Automotive Power Supplies  
■
Telecom Power Supplies  
■
Isolated Electronic Equipment  
■
Auxiliary/Housekeeping Power Supplies  
■
Power over Ethernet  
TYPICAL APPLICATION  
Efficiency and Power Loss vs Load Current  
100  
95  
90  
85  
80  
75  
2.5  
2.0  
1.5  
1
5V to 12V/1A Boost Converter  
UPS840  
4.3μH  
V
12V  
1A  
5V EFFICIENCY  
8.5V EFFICIENCY  
OUT  
V
5V  
IN  
22μF  
×2  
100μF  
V
CC  
RUN  
GATE  
8.5V LOSS  
5V LOSS  
LTC3805-5  
1.33k  
3k  
I
OC  
TH  
191k  
SSFLT  
FS  
I
SENSE  
FB  
0.1μF  
20k  
470pF  
0.5  
0
SYNC GND  
118k  
8mΩ  
13.7k  
1
10  
0.01  
0.1  
38055 TA01  
LOAD CURRENT (A)  
38055TA01b  
38055fa  
1
1234567...20

中文翻译

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LTC3805EMSE-5#PBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3805HMSE-5#PBF Linear

完全替代

 LTC3805-5 - Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller; Packa
LTC3805IMSE-5#PBF Linear

类似代替

 LTC3805-5 - Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller; Packa
LTC3805EMSE-5#TRPBF Linear

类似代替

 LTC3805-5 - Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller; Packa

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