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LTC1707 - 典型应用图例：
LTC1707典型应用图例一
LTC1707典型应用图例二
LTC1707 - 封装图解：
LTC1707封装图解一
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LINEAR产品 - LTC1707介绍

LTC1707 - LTC1707是High Efficiency Monolithic Synchronous Step-Down Switching Regulator

LTC1707是LINEAR凌力尔特公司的一款内部开关电源降压产品，LTC1707是LTC1707是High Efficiency Monolithic Synchronous Step-Down Switching Regulator，本站介绍了LTC1707的封装应用图解、特点和优点、功能等，并给出了与LTC1707相关的LINEAR元器件型号供参考。

LTC1707 - LTC1707是High Efficiency Monolithic Synchronous Step-Down Switching Regulator - 内部开关电源降压 - 电源管理 - 凌力尔特

LTC1707 - High Efficiency Monolithic Synchronous Step-Down Switching Regulator

LTC1707 - High Efficiency Monolithic Synchronous Step-Down Switching Regulator - Linear Technology（凌力尔特）

功能描述
The LTC?1707 is a high efficiency monolithic current mode synchronous buck regulator using a fixed frequency architecture. The operating supply range is from 8.5V down to 2.85V, making it suitable for both single and dual lithium-ion battery-powered applications. Burst Mode operation provides high efficiency at low load currents. 100% duty cycle provides low dropout operation, extending operating time in battery-powered systems.The switching frequency is internally set at 350kHz, allowing the use of small surface mount inductors. For noise sensitive applications it can be externally synchronized up to 550kHz. Burst Mode operation is inhibited during synchronization or when the SYNC/MODE pin is pulled low preventing low frequency ripple from interfering with audio circuitry. Soft-start is provided by an external capacitor.The internal synchronous MOSFET switch increases efficiency and eliminates the need for an external Schottky diode, saving components and board space. Low output voltages down to 0.8V are easily achieved due to the 0.8V internal reference. The LTC1707 comes in an 8-lead SO package.
特点
  • 600mA Output Current (VIN >/= 4V)
  • High Efficiency: Up to 96%
  • Constant Frequency: 350kHz Synchronizable to 550kHz
  • 2.85V to 8.5V VIN Range
  • 0.8V Feedback Reference Allows Low Voltage Outputs: 0.8V ?</= VOUT ?</= VIN
  • No Schottky Diode Required
  • 1.19V ±1% Reference Output Pin
  • Selectable Burst Mode™ Operation/Pulse Skipping Mode
  • Low Dropout Operation: 100% Duty Cycle
  • Precision 2.7V Undervoltage Lockout
  • Current Mode Control for Excellent Line and Load Transient Response
  • Low Quiescent Current: 200µA
  • Shutdown Mode Draws Only 11µA Supply Current
  • Available in 8-Lead SO Package
    • 应用
  • Cellular Telephones
  • Portable Instruments
  • Wireless Modems
  • RF Communications
  • Distributed Power Systems
  • Single and Dual Cell Lithium
    • 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)
    LTC1707CS8 SO-8 C $2.44 $2.05
    LTC1707CS8#PBF SO-8 C $2.44 $2.05
    LTC1707CS8#TR SO-8 C $2.11
    LTC1707CS8#TRPBF SO-8 C $2.11
    LTC1707IS8 SO-8 I $4.35 $3.05
    LTC1707IS8#PBF SO-8 I $4.35 $3.05
    LTC1707IS8#TR SO-8 I $3.11
    LTC1707IS8#TRPBF SO-8 I $3.11
    下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
  • LTC1627 - Monolithic Synchronous Step-Down Switching Regulator
  • LTC1877 - 高效率、单片式、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
  • LTC3630 - 高效率、65V、500mA 同步降压型转换器
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  • LT1763 - 500mA、低噪声、LDO 微功率稳压器
  • LT1934 - 采用 ThinSOT 和 DFN 封装的微功率、降压型开关稳压器
  • LT4320 / LT4320-1 - 理想二极管桥控制器
  • LT3470 - 具集成升压和箝位二极管的微功率降压型稳压器
  • LTC3115-1 - 40V、2A、同步降压-升压型 DC/DC 转换器
    • 下面可能是您感兴趣的凌力尔特公司内部开关电源降压元器件
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