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LTC3873IDDB-5#TRMPBF

厂商:
Linear
类别:
DC/DC控制器
包装:
Tape & Reel (TR)
封装:
8-WFDFN Exposed Pad
无铅情况/ROHS:
无铅
描述:
No Rsense 恒定频率、电流模式、升压/反激/SEPIC 型...

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  • 参数
  • 描述
  • 文档
参数 数值
内部开关 No
同步整流器 No
开关频率 200kHz
输出数 1
输入电压 4 ~ 75 V
输出电压 Adjustable
输出电流 5A
工作温度 -40°C ~ 125°C
安装类型 Surface Mount
类型 Step-Up (Boost), Flyback, Sepic
Number of Outputs 1
Vin Min (V) 8.8
Vin Max (V) 75
Switch Current (A) 10 (10)
Vout Maximum 60V
Topology Boost, Flyback, Sepic
Synchronous (yes/no) no
Packages SOT-23, DFN-8
Features No Rsense, Soft Start
Isupply (mA) 0.3
Ishutdown (uA) 55
Monolithic (yes/no) no
Vout Max (V) 60
Vin Min Startup (V)
Vswitch Max (V) 60
Frequency (kHz) 200
Frequency Adjust Range
Frequency Sync Range
Sense Resistor None
Extended Temp E
Comments No RSENSE Constant Frequency Current Mode Boost/Flyback/SEPIC DC/DC Controller
Featured no
Date Added 2007-04-05
Price 1k * $1.30 (LTC3873EDDB#TRMPBF)
New no

特点
Uses Tiny Capacitors and Inductor
High Frequency Operation: Up to 4MHz
High Switch Current: 1.4A
Low RDS(ON) Internal Switches: 0.110?
High Efficiency: Up to 95%
V IN : 2.63V to 5.5V
Stable with Ceramic Capacitors
Current Mode Operation for Excellent Line and Load Transient Response
Short-Circuit Protected
Low Dropout Operation: 100% Duty Cycle
Low Shutdown Current: I Q ≤ 1μA
Low Quiescent Current: 240μA
Output Voltages from 0.8V to 5V
Low Noise Pulse-Skipping Operation
Small 8-Pin DFN Package

典型应用

典型应用

描述
To further maximize battery life, the P-channel MOSFET is turned on continuously in dropout (100% duty cycle). The no-load quiescent current is only 240μA. In shutdown, the device draws <1μA.

应用指南 (英文)
文档名称 文档类型 软件 描述
LTC3873IDDB-5#TRMPBFPDF下载 点击下载 点击下载 AN67 - Linear Technology Magazine Circuit Collection, Volume III
LTC3873IDDB-5#TRMPBFPDF下载 点击下载 点击下载 AN84 - Linear Technology Magazine Circuit Collection, Volume IV
LT Journal
文档名称 文档类型 软件 描述
LTC3873IDDB-5#TRMPBFPDF下载 点击下载 点击下载 May 2002 Small, Portable Altimeter Operates from a Single Cell
数据表 (英文)
文档名称 文档类型 软件 描述
LTC3873IDDB-5#TRMPBFPDF下载 点击下载 点击下载 LT1307/LT1307B - Single Cell Micropower 600kHz PWM DC/DC Converters
可靠性数据
文档名称 文档类型 软件 描述
LTC3873IDDB-5#TRMPBFPDF下载 点击下载 点击下载 R303 Reliability Data
设计要点 (英文)
文档名称 文档类型 软件 描述
LTC3873IDDB-5#TRMPBFPDF下载 点击下载 点击下载 DN128 - LT1307 Single-Cell Micropower Fixed-Frequency DC/DC Converter Needs No Electrolytic Capacitors