LTC1157 - 3.3V Dual Micropower High-Side/Low-Side MOSFET Driver

The LTC1157 dual 3.3V micropower MOSFET gate driver makes it possible to switch either supply or ground reference loads through a low R DS(ON) Nchannel switch (N-channel switches are required at 3.3V because P-channel MOSFETS do not have guaranteed R DS(ON) with VGS

特点
  • Allows Lowest Drop 3.3V Supply Switching
  • Operates on 3.3V or 5V Nominal Supplies
  • 3 Microamps Standby Current
  • 80 Microamps ON Current
  • Drives Low Cost N-Channel Power MOSFETs
  • No External Charge Pump Components
  • Controlled Switching ON and OFF Times
  • Compatible with 3.3V and 5V Logic Families
  • Available in 8-Pin SOIC
典型应用
LTC1157 Typical Application
LTC1157 Typical Application
应用
  • Notebook Computer Power Management
  • Palmtop Computer Power Management
  • P-Channel Switch Replacement
  • Battery Charging and Management
  • Mixed 5V and 3.3V Supply Switching
  • Stepper Motor and DC Motor Control
  • Cellular Telephones and Beepers
封装信息
LTC1157 Package Drawing
LTC1157 Package Drawing
Order Information 订购型号
器件型号封装温度价格 (以 1 ~ 99 片为批量)价格 (以 1000 片为批量) *
LTC1157CN8#PBFN-8C$3.00$2.45
LTC1157CS8#PBFSO-8C$3.15$2.55
LTC1157CS8#TRPBFSO-8C$2.61
数据表
应用指南
设计要点
可靠性数据
CAD 符号
相关产品
LTC1157 - 3.3V Dual Micropower High-Side/Low-Side MOSFET Driver
AN51 - Power Conditioning for Notebook and Palmtop Systems
AN53 - Micropower High Side MOSFET Drivers
AN66 - Linear Technology Magazine Circuit Collection, Volume II
DN71 - Regulator Circuit Generates Both 3.3V and 5V Outputs from 3.3V or 5V to Run Computers and RS232
DN76 - PC Card Power Management Techniques
R294 Reliability Data
LTC1157 Footprints and Symbols