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LTC3405A-1.375 - 典型应用图例：
LTC3405A-1.375典型应用图例一
LTC3405A-1.375典型应用图例二
LTC3405A-1.375 - 封装图解：
LTC3405A-1.375封装图解一
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LINEAR产品 - LTC3405A-1.375介绍

LTC3405A-1.375 - LTC3405A-1.375是1.375V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT

LTC3405A-1.375是LINEAR凌力尔特公司的一款微功率降压产品，LTC3405A-1.375是LTC3405A-1.375是1.375V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT，本站介绍了LTC3405A-1.375的封装应用图解、特点和优点、功能等，并给出了与LTC3405A-1.375相关的LINEAR元器件型号供参考。

LTC3405A-1.375 - LTC3405A-1.375是1.375V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT - 微功率降压 - 电源管理 - 凌力尔特

LTC3405A-1.375 - 1.375V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT

LTC3405A-1.375 - 1.375V, 1.5MHz, 300mA Synchronous Step-Down Regulators in ThinSOT - Linear Technology（凌力尔特）

功能描述
The LTC3405A-1.375 is a high efficiency monolithic synchronous buck regulator using a constant frequency, current mode architecture. Supply current during operation is only 20µA and drops to <1µA in shutdown. The 2.5V to 5.5V input voltage range makes the LTC3405A-1.375 ideally suited for single Li-Ion battery-powered applications. 100% duty cycle provides low dropout operation, extending battery life in portable systems.

Switching frequency is internally set at 1.5MHz, allowing the use of small surface mount inductors and capacitors.

The LTC3405A-1.375 is specifically designed to work well with ceramic output capacitors, achieving very low output voltage ripple and a small PCB footprint.

The internal synchronous switch increases efficiency and eliminates the need for an external Schottky diode. The LTC3405A-1.375 is available in a low profile (1mm) ThinSOT package.

For other output voltages, refer to the LTC3405A and LTC3405A-1.5/LTC3405A-1.8 data sheets.

Protected by U.S. Patents, including 5481178, 6580258, 6304066, 6127815, 6498466, 6611131.

特点
  • High Efficiency: Up to 90%
  • Very Low Quiescent Current: Only 20µA During Operation
  • 300mA Output Current at VIN = 3V
  • 2.5V to 5.5V Input Voltage Range
  • 1.5MHz Constant Frequency Operation
  • No Schottky Diode Required
  • Low Dropout Operation: 100% Duty Cycle
  • Stable with Ceramic Capacitors
  • Shutdown Mode Draws <1µA Supply Current
  • ±3% Output Voltage Accuracy
  • Current Mode Operation for Excellent Line and Load Transient Response
  • Overtemperature Protected
  • Low Profile (1mm) ThinSOTTM Package
    • 应用
  • Cellular Telephones
  • Personal Information Appliances
  • Wireless and DSL Modems
  • Digital Still Cameras
  • MP3 Players
  • Portable 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)
    LTC3405AES6-1.375 SOT-23 E $2.37
    LTC3405AES6-1.375#PBF SOT-23 E $2.37
    LTC3405AES6-1.375#TR SOT-23 E $2.37 $1.67
    LTC3405AES6-1.375#TRM SOT-23 E $2.37 $1.69
    LTC3405AES6-1.375#TRMPBF SOT-23 E $2.37 $1.69
    LTC3405AES6-1.375#TRPBF SOT-23 E $2.37 $1.67
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