LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage

The switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors. The LTC3563 is specifically designed to work well with ceramic output capacitors, achieving very low output voltage ripple and a small PCB footprint.

The LTC3563 is configured for the power saving Burst Mode Operation.

特点
  • High Efficiency: Up to 96%
  • Pin Selectable Output Voltage: 1.28V/1.87V
  • Low Ripple (<20mVP-P) Burst Mode® Operation:  IQ = 26µA
  • Very Low Quiescent Current: Only 26µA
  • 2.5V to 5.5V Input Voltage Range
  • 2.25MHz Constant Frequency Operation
  • Low Dropout Operation: 100% Duty Cycle
  • No Schottky Diode Required
  • Internal Soft-Start Limits Inrush Current
  • Shutdown Mode Draws <1µA Supply Current
  • ±2% Output Voltage Accuracy
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Overtemperature Protected
  • Available in 2mm × 2mm 6-Lead DFN
典型应用
LTC3563 Typical Application
LTC3563 Typical Application
应用
  • Cellular Telephones
  • Wireless and DSL Modems
  • Digital Cameras
  • MP3 Players
  • PDAs and Other Handheld Devices
封装信息
LTC3563 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) *
LTC3563EDC#PBF2x2 DFN-6E$2.29
LTC3563EDC#TRMPBF2x2 DFN-6E$2.29$1.65
LTC3563EDC#TRPBF2x2 DFN-6E$2.29$1.60
数据表
可靠性数据
产品新闻发布
CAD 符号
相关产品
LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage
R415 - Reliability Data
Synchronous Step-Down DC/DC Converter Delivers up to 500mA with Pin Selectable 1.28V/1.87 Outputs
LTC3563 Footprints and Symbols