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LTC1503-2 - 典型应用图例：
LTC1503-2典型应用图例一
LTC1503-2典型应用图例二
LTC1503-2 - 封装图解：
LTC1503-2封装图解一
LTC1503-2封装图解二
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LINEAR产品 - LTC1503-2介绍

LTC1503-2 - LTC1503-2是High Efficiency Inductorless Step-Down DC/DC Converter

LTC1503-2是LINEAR凌力尔特公司的一款稳压的降压型充电泵产品，LTC1503-2是LTC1503-2是High Efficiency Inductorless Step-Down DC/DC Converter，本站介绍了LTC1503-2的封装应用图解、特点和优点、功能等，并给出了与LTC1503-2相关的LINEAR元器件型号供参考。

LTC1503-2 - LTC1503-2是High Efficiency Inductorless Step-Down DC/DC Converter - 稳压的降压型充电泵 - 电源管理 - 凌力尔特

LTC1503-2 - High Efficiency Inductorless Step-Down DC/DC Converter

LTC1503-1.8 - High Efficiency Inductorless Step-Down DC/DC Converter - Linear Technology（凌力尔特）

功能描述
The LTC®1503-1.8/LTC1503-2 are switched capacitor step-down DC/DC converters that produce a regulated output from a 2.4V to 6V input. The parts use switched capacitor fractional conversion to achieve high efficiency over the entire input range. No inductors are required. Internal circuitry controls the step-down conversion ratio to optimize efficiency as the input voltage and load conditions vary. Typical efficiency is 25% higher than that of a low dropout (LDO) linear regulator.Regulation is achieved by sensing the output voltage and enabling the internal switching network as needed to maintain a fixed output voltage. This method of regulation enables the parts to achieve high efficiency at extremely light loads. Low operating current (25µA with no load, 5µA in shutdown) and low external parts count (two 1µF flying capacitors and two 10µF bypass capacitors) make the LTC1503-1.8/LTC1503-2 ideally suited for space constrained battery-powered applications. The parts are fully short-circuit and overtemperature protected.The LTC1503-1.8/LTC1503-2 are available in 8-pin MSOP and SO packages.
特点
  • Input Voltage Range: 2.4V to 6V
  • Fixed Output Voltages: 1.8V ±4%, 2V ±4%
  • Output Current: 100mA
  • No Inductors
  • Typical Efficiency 25% Higher than LDOs
  • Low Operating Current: 25µA
  • Low Shutdown Current: 5µA
  • 600kHz Switching Frequency
  • Shutdown Disconnects Load from VIN
  • Soft-Start Limits Inrush Current at Turn-On
  • Short-Circuit and Overtemperature Protected
  • Available in 8-Pin MSOP and SO Packages
    • 应用
  • Cellular Phones
  • Handheld Computers
  • Smart Card Readers
  • Low Power DSP Supplies
  • Portable Electronic Equipment
  • Handheld Medical Instruments
    • 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)
    LTC1503CMS8-1.8 MS-8 C $2.20 $1.90
    LTC1503CMS8-1.8#PBF MS-8 C $2.20 $1.90
    LTC1503CMS8-1.8#TR MS-8 C $1.96
    LTC1503CMS8-1.8#TRPBF MS-8 C $1.96
    LTC1503CMS8-2 MS-8 C $2.20 $1.90
    LTC1503CMS8-2#PBF MS-8 C $2.20 $1.90
    LTC1503CS8-1.8 SO-8 C $2.00 $1.70
    LTC1503CS8-1.8#PBF SO-8 C $2.00 $1.70
    LTC1503CS8-1.8#TR SO-8 C $1.76
    LTC1503CS8-1.8#TRPBF SO-8 C $1.76
    LTC1503CS8-2 SO-8 C $2.00 $1.70
    LTC1503CS8-2#PBF SO-8 C $2.00 $1.70
    LTC1503CS8-2#TR SO-8 C $1.76
    LTC1503CS8-2#TRPBF SO-8 C $1.76
    LTC1503IS8-1.8 SO-8 I $2.45 $2.05
    LTC1503IS8-1.8#PBF SO-8 I $2.45 $2.05
    LTC1503IS8-1.8#TR SO-8 I $2.11
    LTC1503IS8-1.8#TRPBF SO-8 I $2.11
    LTC1503IS8-2 SO-8 I $2.45 $2.05
    LTC1503IS8-2#PBF SO-8 I $2.45 $2.05
    LTC1503IS8-2#TR SO-8 I $2.11
    LTC1503IS8-2#TRPBF SO-8 I $2.11
    下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
  • LTC3251 - 500mA High Efficiency, Low Noise, Inductorless Step-Down DC/DC Converters
  • LTC3255 - 宽 VIN 范围、故障保护、50mA 降压型充电泵
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
  • LT1028 - 超低噪声、精准型高速运算放大器
  • LT1763 - 500mA、低噪声、LDO 微功率稳压器
  • LTC1911-1.5 - Low Noise, High Efficiency, Inductorless Step-Down DC/DC Converter
  • LT1963A - 1.5A、低噪声、快速瞬态响应 LDO 稳压器
  • LT3470 - 具集成升压和箝位二极管的微功率降压型稳压器
  • LTC6992-1 / LTC6992-2 / LTC6992-3 / LTC6992-4 - TimerBlox : 电压控制型脉宽调制器 (PWM)
  • LT3015 系列 - 具精准电流限值的 1.5A、低噪声、负线性稳压器
    • 下面可能是您感兴趣的凌力尔特公司稳压的降压型充电泵元器件
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