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LTC3564技术文档下载:
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LTC3564 - 典型应用图例:
LTC3564典型应用图例一
LTC3564典型应用图例二
LTC3564 - 封装图解:
LTC3564封装图解一
LTC3564封装图解二
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LINEAR产品 - LTC3564介绍

LTC3564 - LTC3564是2.25MHz, 1.25A Synchronous Step-Down Regulator

LTC3564是LINEAR凌力尔特公司的一款微功率降压产品,LTC3564是LTC3564是2.25MHz, 1.25A Synchronous Step-Down Regulator,本站介绍了LTC3564的封装应用图解、特点和优点、功能等,并给出了与LTC3564相关的LINEAR元器件型号供参考。

LTC3564 - LTC3564是2.25MHz, 1.25A Synchronous Step-Down Regulator - 微功率降压 - 电源管理 - 凌力尔特

LTC3564 - 2.25MHz, 1.25A Synchronous Step-Down Regulator

LTC3564 - 2.25MHz, 1.25A Synchronous Step-Down Regulator - Linear Technology(凌力尔特)

功能描述
The LTC3564 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 20μA, dropping to ≤1μA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3564 ideally suited for single Li-Ion battery-powered or 3.3V to 5V input voltage applications. 100% duty cycle provides low drop- out operation, extending battery life in portable systems. Automatic Burst Mode operation increases efficiency at light loads, further extending battery runtime.

Switching frequency is internally set at 2.25MHz, allowing the use of small surface mount inductors and capacitors.

The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. Low output voltages are easily supported with the 0.6V feedback reference voltage. The LTC3564 is available in low profile (1mm) ThinSOT and 6-Lead (2mm × 3mm) DFN packages.
特点
  • High Efficiency: Up to 96%
  • Very Low Quiescent Current: Only 20μA
  • 1.25A Output Current
  • 2.5V to 5.5V Input Voltage Range
  • 2.25MHz Constant Frequency Operation
  • No Schottky Diode Required
  • Low Dropout Operation: 100% Duty Cycle
  • 0.6V Reference Allows Low Output Voltages
  • Shutdown Mode Draws ≤ 1μA Supply Current
  • Current Mode Operation for Excellent Line and
  • Load Transient Response
  • Overtemperature Protected
  • Low Profile (1mm) ThinSOT and
  • 6-Lead (2mm × 3mm) DFN Packages
  • 应用
  • Cellular Telephones
  • Wireless and DSL Modems
  • Digital Still Cameras
  • Media Players
  • Portable Instruments
  • Point of Load Regulation
  • 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)
    LTC3564EDCB#TRMPBF 2x3 DFN-6 E $2.79 $2.00
    LTC3564EDCB#TRPBF 2x3 DFN-6 E $2.79 $1.95
    LTC3564ES5#TRMPBF SOT-23 E $2.79 $2.00
    LTC3564ES5#TRPBF SOT-23 E $2.79 $1.95
    LTC3564IDCB#TRMPBF 2x3 DFN-6 I $3.20 $2.29
    LTC3564IDCB#TRPBF 2x3 DFN-6 I $3.20 $2.24
    LTC3564IS5#PBF SOT-23 I $3.20
    LTC3564IS5#TRMPBF SOT-23 I $3.20 $2.29
    LTC3564IS5#TRPBF SOT-23 I $3.20 $2.24
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  • LT8610 - 具 2.5μA 静态电流的 42V、2.5A 同步降压型稳压器
  • LT1761 - 采用 SOT-23 封装的 100mA、低噪声、LDO 微功率稳压器
  • LTC3621 / LTC3621-2 - 具 3.5μA 静态电流的 17V、1A、同步降压型稳压器
  • LTC3115-1 - 40V、2A、同步降压-升压型 DC/DC 转换器
  • LT3757 - 升压、反激式、SEPIC 和负输出控制器
  • LTC3560 - 采用 ThinSOT 封装的 2.25MHz、800mA 同步降压型稳压器
  • LT8614 - 具 2.5μA 静态电流的 42V、4A 同步降压型 Silent Switcher
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