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LT1776 - 典型应用图例:
LT1776典型应用图例一
LT1776典型应用图例二
LT1776 - 封装图解:
LT1776封装图解一
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LINEAR产品 - LT1776介绍

LT1776 - LT1776是Wide Input Range, High Efficiency, Step-Down Switching Regulator

LT1776是LINEAR凌力尔特公司的一款内部开关电源降压产品,LT1776是LT1776是Wide Input Range, High Efficiency, Step-Down Switching Regulator,本站介绍了LT1776的封装应用图解、特点和优点、功能等,并给出了与LT1776相关的LINEAR元器件型号供参考。

LT1776 - LT1776是Wide Input Range, High Efficiency, Step-Down Switching Regulator - 内部开关电源降压 - 电源管理 - 凌力尔特

LT1776 - Wide Input Range, High Efficiency, Step-Down Switching Regulator

LT1776 - Wide Input Range, High Efficiency, Step-Down Switching Regulator - Linear Technology(凌力尔特)

功能描述

The LT1776 is a wide input range, high efficiency Buck (step-down) switching regulator. The monolithic die includes all oscillator, control and protection circuitry. The part can accept input voltages as high as 60V and contains an output switch rated at 700mA peak current. Current mode control delivers excellent dynamic input supply rejection and short-circuit protection.

The LT1776 contains several features to enhance efficiency. The internal control circuitry is normally powered via the VCC pin, thereby minimizing power drawn directly from the VIN supply (see Applications Information). The action of the LT1776 switch circuitry is also load dependent. At medium to high loads, the output switch circuitry maintains fast rise time for good efficiency. At light loads, rise time is deliberately reduced to avoid pulse skipping behavior.

The available SO-8 package and 200kHz switching frequency allow for minimal PC board area requirements.

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特点
  • Wide Input Range: 7.4V to 40V
  • Tolerates Input Transients to 60V
  • 700mA Peak Switch Rating
  • Adaptive Switch Drive Maintains Efficiency at High Load Without Pulse Skipping at Light Load
  • True Current Mode Control
  • 200kHz Fixed Operating Frequency
  • Synchronizable to 400kHz
  • Low Supply Current in Shutdown: 30μA
  • Available in 8-Pin SO and PDIP Packages?
  • 应用
  • Automotive DC/DC Converters
  • Cellular Phone Battery Charger Accessories
  • IEEE 1394 Step-Down Converters
  • 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)
    LT1776CN8 N-8 C $3.05 $2.50
    LT1776CN8#PBF N-8 C $3.05 $2.50
    LT1776CS8 SO-8 C $3.15 $2.60
    LT1776CS8#PBF SO-8 C $3.15 $2.60
    LT1776CS8#TR SO-8 C $2.66
    LT1776CS8#TRPBF SO-8 C $2.66
    LT1776IN8 N-8 I $3.55 $2.85
    LT1776IN8#PBF N-8 I $3.55 $2.85
    LT1776IS8 SO-8 I $3.60 $3.00
    LT1776IS8#PBF SO-8 I $3.60 $3.00
    LT1776IS8#TRPBF SO-8 I $3.06
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  • LT3502/LT3502A - 采用 2mm x 2mm DFN 封装的 1.1MHz/2.2MHz、500mA 降压型稳压
  • LT1933 - 采用 SOT-23 和 DFN 封装的 600mA、500kHz 降压型开关稳压器
  • LT3470 - 具集成升压和箝位二极管的微功率降压型稳压器
  • LTC3630 - 高效率、65V、500mA 同步降压型转换器
  • LT1676 - Wide Input Range, High Efficiency, Step-Down Switching Regulator
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
  • LT1934 - 采用 ThinSOT 和 DFN 封装的微功率、降压型开关稳压器
  • LT3970 系列 - 具 2.5μA 静态电流和集成二极管的 40V、350mA 降压型稳压器
  • LT3990 - 具 2.5μA 静态电流和集成二极管的 62V、350mA 降压型稳压器
  • LT1375 - 1.5A、500kHz 降压型开关稳压器
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