LTC3523 - Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters

Features
  • Dual High Efficiency DC/DC Converters:   Step-Up (VOUT = 1.8V to 5.25V, ISW = 600mA)   Step-Down (VOUT = 0.615V to 5.5V, IOUT = 400mA)
  • 1.8V to 5.5V Input Voltage Range
  • Up to 94% Efficiency
  • Pin Selectable Burst Mode® Operation
  • 45μA Quiescent Current in Burst Mode Operation
  • 1.2MHz (LTC3523) or 2.4MHz (LTC3523-2) Switching Frequency
  • Independent Power Good Indicator Outputs
  • Integrated Soft-Start
  • Thermal and Overcurrent Protection
  • < 2μA Quiescent Current in Shutdown
  • Small 16-Lead 3mm x 3mm x 0.75mm QFN Package
Typical Application

Applications
  • Digital Cameras
  • Medical Instruments
  • Industrial Handhelds
  • GPS Navigators
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC3523EUD-2#PBF3x3 QFN-16E$4.22$2.95
LTC3523EUD-2#TRPBF3x3 QFN-16E$3.01
LTC3523EUD#PBF3x3 QFN-16E$4.22$2.95
LTC3523EUD#TRPBF3x3 QFN-16E$3.01
Demo Boards
Part NumberDescriptionPrice
DC1213ALTC3523EUD | 1MHz Dual 400mA Buck + 600mA Sync Boost$125.00
Datasheet
Reliability Data
Press Release
Related Product
LTC3523/LTC3523-2 - Synchronous 600mA Step-Up and 400mA Step-Down DC/DC Converters
R415 - Reliability Data
LTC3523/-2 : 采用 3mm x 3mm QFN 封装、具 2.4MHz 开关频率的同步 600mA (ISW) 升压和 400mA (IOUT) 降压型稳压器
LTC3523 Footprints and Symbols