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LTC3830 - 典型应用图例：
LTC3830典型应用图例一
LTC3830典型应用图例二
LTC3830 - 封装图解：
LTC3830封装图解一
LTC3830封装图解二
LTC3830LTC3830
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LINEAR产品 - LTC3830介绍

LTC3830 - LTC3830是High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

LTC3830是LINEAR凌力尔特公司的一款外部开关电源控制器产品，LTC3830是LTC3830是High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation，本站介绍了LTC3830的封装应用图解、特点和优点、功能等，并给出了与LTC3830相关的LINEAR元器件型号供参考。

LTC3830 - LTC3830是High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation - 外部开关电源控制器 - 电源管理 - 凌力尔特

LTC3830 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation

LTC3830 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation - Linear Technology（凌力尔特）

功能描述

The LTC3830/LTC3830-1 are high power, high efficiency switching regulator controllers optimized for 3.3V-5V to 1.xV-3.xV step-down applications. A precision internal reference and feedback system provide ±1% output regulation over temperature, load current and line voltage variations. The LTC3830/LTC3830-1 use a synchronous switching architecture with N-channel MOSFETs. Additionally, the chip senses output current through the drain-source resistance of the upper N-channel FET, providing an adjustable current limit without a current sense resistor.

The LTC3830/LTC3830-1 operate with an input supply voltage as low as 3V and with a maximum duty cycle of >91% over temperature. They include a fixed frequency PWM oscillator for low output ripple operation. The 200kHz free-running clock frequency can be externally adjusted or synchronized with an external signal from 100kHz to 500kHz. In shutdown mode, the LTC3830 supply current drops to <10µA. The LTC3830-1 differs from the LTC3830 S8 version by replacing shutdown with a soft-start function.

For a similar, pin compatible DC/DC converter with an output voltage as low as 0.6V, please refer to the LTC3832.

特点
  • High Power Switching Regulator Controller for 3.3V-5V to 1.xV-3.xV Step-Down Applications
  • No Current Sense Resistor Required
  • Low Input Supply Voltage Range: 3V to 8V
  • Maximum Duty Cycle >91% Over Temperature
  • All N-Channel External MOSFETs
  • Excellent Output Regulation: ±1% Over Line, Load and Temperature Variations
  • High Efficiency: Over 95% Possible
  • Adjustable or Fixed 3.3V Output (16-Pin Version)
  • Programmable Fixed Frequency Operation: 100kHz to 500kHz
  • External Clock Synchronization
  • Soft-Start (Some Versions)
  • Low Shutdown Current: <10µA
  • Overtemperature Protection
  • Available in S8, S16 and SSOP-16 Packages
    • 应用
  • CPU Power Supplies
  • Multiple Logic Supply Generator
  • Distributed Power Applications
  • High Efficiency Power Conversion
    • 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)
    LTC3830-1ES8 SO-8 E $3.61 $3.05
    LTC3830-1ES8#PBF SO-8 E $3.61 $3.05
    LTC3830-1ES8#TR SO-8 E $3.11
    LTC3830-1ES8#TRPBF SO-8 E $3.11
    LTC3830EGN SSOP-16 E $4.50 $3.80
    LTC3830EGN#PBF SSOP-16 E $4.50 $3.80
    LTC3830EGN#TR SSOP-16 E $3.86
    LTC3830EGN#TRPBF SSOP-16 E $3.86
    LTC3830ES SO-16 E $4.14 $3.50
    LTC3830ES#PBF SO-16 E $4.14 $3.50
    LTC3830ES#TR SO-16 E $3.56
    LTC3830ES#TRPBF SO-16 E $3.56
    LTC3830ES8 SO-8 E $3.61 $3.05
    LTC3830ES8#PBF SO-8 E $3.61 $3.05
    LTC3830ES8#TR SO-8 E $3.11
    LTC3830ES8#TRPBF SO-8 E $3.11
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  • LTC1624 - High Efficiency SO-8 N-Channel Switching Regulator Controller
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
  • LTC3832 - High Power Step-Down Synchronous DC/DC Controllers for Low Voltage Operation
  • LT1763 - 500mA、低噪声、LDO 微功率稳压器
  • LTC3810 - 100V 电流模式同步开关稳压控制器
  • LT3763 - 60V 高电流降压型 LED 驱动器控制器
  • LT3796 - 具双电流检测的 100V 恒定电流和恒定电压控制器
  • LT8705 - 80V VIN 和 VOUT 同步、四开关、降压-升压型 DC/DC 控制器
  • LT4320 / LT4320-1 - 理想二极管桥控制器
  • LT4363 - 具电流限制功能的高电压浪涌抑制器
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