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LTC3563 - 典型应用图例：
LTC3563典型应用图例一
LTC3563典型应用图例二
LTC3563 - 封装图解：
LTC3563封装图解一
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LINEAR产品 - LTC3563介绍

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

LTC3563是LINEAR凌力尔特公司的一款微功率降压产品，LTC3563是LTC3563是500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage，本站介绍了LTC3563的封装应用图解、特点和优点、功能等，并给出了与LTC3563相关的LINEAR元器件型号供参考。

LTC3563 - LTC3563是500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage - 微功率降压 - 电源管理 - 凌力尔特

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

LTC3563 - 500mA, Synchronous Step-Down DC/DC Converter with Selectable Output Voltage - Linear Technology（凌力尔特）

功能描述
The LTC3563 is a high efficiency monolithic synchronous buck converter using a constant frequency, current mode architecture. A voltage select input allows the user to program the output voltage to 1.28V or 1.87V. Supply current during operation is only 26µA, dropping to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3563 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems. Internal power switches are optimized to provide high efficiency and eliminate the need for an external Schottky diode.

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
    • 应用
  • Cellular Telephones
  • Wireless and DSL Modems
  • Digital Cameras
  • MP3 Players
  • PDAs and Other Handheld Devices
    • 以下列出了不同封装及包装形式的具体型号,并标出了直接在linear官网上订货的价格（美元）
    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 2x2 DFN-6 E $2.29
    LTC3563EDC#PBF 2x2 DFN-6 E $2.29
    LTC3563EDC#TRMPBF 2x2 DFN-6 E $2.29 $1.65
    LTC3563EDC#TRPBF 2x2 DFN-6 E $2.29 $1.60
    下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
  • LTC3542 - 500mA、2.25MHz 同步降压型 DC/DC 转换器
  • LTC3103 - 1.8μA 静态电流、15V、300mA 同步降压型 DC/DC 转换器
  • LT1761 - 采用 SOT-23 封装的 100mA、低噪声、LDO 微功率稳压器
  • LT3502/LT3502A - 采用 2mm x 2mm DFN 封装的 1.1MHz/2.2MHz、500mA 降压型稳压
  • LT8471 - 具 2A 开关和同步功能的双通道、多拓扑 DC/DC 转换器
  • LTC3260 - 低噪声、双通道电源的负输出充电泵
  • LT3580 - 具 2A 开关、软起动和同步功能的升压/负输出 DC/DC 转换器
  • LT8610 - 具 2.5μA 静态电流的 42V、2.5A 同步降压型稳压器
  • LTC3646 / LTC3646-1 - 40V、1A、同步降压型稳压器
  • LTC3621 / LTC3621-2 - 具 3.5μA 静态电流的 17V、1A、同步降压型稳压器
    • 下面可能是您感兴趣的凌力尔特公司微功率降压元器件
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