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LTC3805MPMSE-5#TRPBF PDF预览

LTC3805MPMSE-5#TRPBF

更新时间: 2024-01-28 20:24:53
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 253K
描述
LTC3805-5 - Adjustable Frequency Current Mode Flyback/ Boost/SEPIC DC/DC Controller; Package: MSOP; Pins: 10; Temperature Range: -55°C to 125°C

LTC3805MPMSE-5#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:HTSSOP,
针数:10Reach Compliance Code:compliant
风险等级:5.69Is Samacsys:N
模拟集成电路 - 其他类型:SWITCHING REGULATOR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:125 °C最低工作温度:-55 °C
封装主体材料:PLASTIC/EPOXY封装代码:HTSSOP
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):NOT SPECIFIED认证状态:Not Qualified
座面最大高度:1.1 mm表面贴装:YES
切换器配置:BOOST最大切换频率:700 kHz
技术:CMOS温度等级:MILITARY
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

LTC3805MPMSE-5#TRPBF 数据手册

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LTC3805-5  
Adjustable Frequency  
Current Mode Flyback/  
Boost/SEPIC DC/DC Controller  
DESCRIPTION  
FEATURES  
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.  
n
V and V  
Limited Only by External Components  
IN  
OUT  
n
n
n
4.5V Undervoltage Lockout Threshold  
Adjustable Slope Compensation  
Adjustable Overcurrent Protection with Automatic  
Restart  
n
Adjustable Operating Frequency (70kHz to 700kHz)  
With One External Resistor  
n
n
n
n
Synchronizable to an External Clock  
±±.5ꢀ Reference Accuracy  
Only ±00mV Current Sense Voltage Drop  
RUN Pin with Precision Threshold and Adjustable  
Hysteresis  
The LTC3805-5 provides ±±.5ꢀ output voltage accuracy  
and consumes only 360µA of quiescent current during  
normal operation and only 40µA during micropower start-  
up. Using a 9.5V internal shunt regulator, the LTC3805-5  
n
n
n
Programmable Soft-Start with One External Capacitor  
Low Quiescent Current: 360µA  
can be powered from a high V through a resistor or it  
IN  
Small ±0-Lead MSOP and 3mm × 3mm DFN  
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.  
n
Automotive Power Supplies  
n
Telecom Power Supplies  
L, LT, LTC, LTM, Burst Mode, Linear Technology and the Linear logo are registered  
n
trademarks, No R  
and ThinSOT are trademarks of Linear Technology Corporation.  
SENSE  
Isolated Electronic Equipment  
All other trademarks are the property of their respective owners.  
n
Auxiliary/Housekeeping Power Supplies  
n
Power over Ethernet  
TYPICAL APPLICATION  
Efficiency and Power Loss vs Load Current  
5V to 12V/1A Boost Converter  
100  
95  
90  
85  
80  
75  
2.5  
2.0  
1.5  
1
UPS840  
4.3µH  
V
12V  
1A  
OUT  
V
5V  
IN  
5V EFFICIENCY  
8.5V EFFICIENCY  
22µF  
×2  
100µF  
V
CC  
RUN  
GATE  
LTC3805-5  
1.33k  
3k  
8.5V LOSS  
5V LOSS  
I
OC  
TH  
191k  
SSFLT  
FS  
I
SENSE  
FB  
0.1µF  
20k  
470pF  
0.5  
0
SYNC GND  
118k  
8mΩ  
13.7k  
38055 TA01a  
1
10  
0.01  
0.1  
LOAD CURRENT (A)  
38055TA01b  
38055fe  
1

LTC3805MPMSE-5#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
LTC3805MPMSE-5#PBF Linear

完全替代

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

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