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LTC1735 - 典型应用图例：
LTC1735典型应用图例一
LTC1735 - 封装图解：
LTC1735封装图解一
LTC1735封装图解二
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LINEAR产品 - LTC1735介绍

LTC1735 - LTC1735是High Efficiency Synchronous Step-Down Switching Regulator

LTC1735是LINEAR凌力尔特公司的一款外部开关电源控制器产品，LTC1735是LTC1735是High Efficiency Synchronous Step-Down Switching Regulator，本站介绍了LTC1735的封装应用图解、特点和优点、功能等，并给出了与LTC1735相关的LINEAR元器件型号供参考。

LTC1735 - LTC1735是High Efficiency Synchronous Step-Down Switching Regulator - 外部开关电源控制器 - 电源管理 - 凌力尔特

LTC1735 - High Efficiency Synchronous Step-Down Switching Regulator

LTC1735 - High Efficiency Synchronous Step-Down Switching Regulator - Linear Technology（凌力尔特）

功能描述

The LTC1735 is a synchronous step-down switching regulator controller that drives external N-channel power MOSFETs using a fixed frequency architecture. Burst Mode? operation provides high efficiency at low load currents. The precision 0.8V reference is compatible with future generation microprocessors. OPTI-LOOP compensation allows the transient response to be optimized over a wide range of output capacitance and ESR values.

The operating frequency (synchronizable up to 500kHz) is set by an external capacitor allowing maximum flexibility in optimizing efficiency. A forced continuous control pin reduces noise and RF interference and can assist secondary winding regulation by disabling Burst Mode operation when the main output is lightly loaded.

Protection features include internal foldback current limiting, output overvoltage crowbar and optional shortcircuit shutdown. Soft-start is provided by an external capacitor that can be used to properly sequence supplies. The operating current level is user-programmable via an external current sense resistor. Wide input supply range allows operation from 4V to 30V (36V maximum).

特点
  • Synchronizable/Programmable Fixed Frequency
  • OPTI-LOOP? Compensation Minimizes COUT
  • ±1% Output Voltage Accuracy
  • Dual N-Channel MOSFET Synchronous Drive
  • Wide VIN Range: 4V to 36V Operation
  • VOUT Range: 0.8V to 6V
  • Internal Current Foldback
  • Output Overvoltage Crowbar Protection
  • Latched Short-Circuit Shutdown Timer with Defeat Option
  • Very Low Dropout Operation: 99% Duty Cycle
  • Forced Continuous Control Pin
  • Optional Programmable Soft-Start
  • Remote Output Voltage Sense
  • Power Good Output (LTC1735F Only)
  • Logic Controlled Micropower Shutdown: IQ < 25μA
  • LTC1435 Pin Compatible with Minor Component Changes
  • Available in 16-Lead Narrow SSOP, SO Packages and 20-Lead TSSOP Package (LTC1735F Only)
    • 应用
  • Notebook and Palmtop Computers, PDAs
  • Cellular Telephones and Wireless Modems
  • DC Power Distribution Systems
    • 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)
    LTC1735CF TSSOP-20 C $3.91 $3.30
    LTC1735CF#PBF TSSOP-20 C $3.91 $3.30
    LTC1735CF#TR TSSOP-20 C $3.42
    LTC1735CF#TRPBF TSSOP-20 C $3.42
    LTC1735CGN SSOP-16 C $3.80 $3.25
    LTC1735CGN#PBF SSOP-16 C $3.80 $3.25
    LTC1735CGN#TR SSOP-16 C $3.31
    LTC1735CGN#TRPBF SSOP-16 C $3.31
    LTC1735CS SO-16 C $3.65 $3.10
    LTC1735CS#PBF SO-16 C $3.65 $3.10
    LTC1735CS#TR SO-16 C $3.16
    LTC1735CS#TRPBF SO-16 C $3.16
    LTC1735EGN SSOP-16 E $4.25 $3.60
    LTC1735EGN#PBF SSOP-16 E $4.25 $3.60
    LTC1735EGN#TR SSOP-16 E $3.66
    LTC1735EGN#TRPBF SSOP-16 E $3.66
    LTC1735IF TSSOP-20 I $6.52 $4.30
    LTC1735IF#PBF TSSOP-20 I $6.52 $4.30
    LTC1735IF#TR TSSOP-20 I $4.42
    LTC1735IF#TRPBF TSSOP-20 I $4.42
    LTC1735IGN SSOP-16 I $5.05 $4.25
    LTC1735IGN#PBF SSOP-16 I $5.05 $4.25
    LTC1735IGN#TR SSOP-16 I $4.31
    LTC1735IGN#TRPBF SSOP-16 I $4.31
    LTC1735IS SO-16 I $4.90 $4.05
    LTC1735IS#PBF SO-16 I $4.90 $4.05
    LTC1735IS#TR SO-16 I $4.11
    LTC1735IS#TRPBF SO-16 I $4.11
    下面可能是您感兴趣的Linear Technology（凌力尔特）元器件
  • LT3800 - 高电压同步电流模式降压型控制器
  • LTC1624 - High Efficiency SO-8 N-Channel Switching Regulator Controller
  • LT4363 - 具电流限制功能的高电压浪涌抑制器
  • LTC3891 - 低 Iq、60V、同步降压型控制器
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  • LTC3703 - 100V 同步开关稳压控制器
  • LTC3810 - 100V 电流模式同步开关稳压控制器
  • LT8705 - 80V VIN 和 VOUT 同步、四开关、降压-升压型 DC/DC 控制器
  • LT1074 - 降压型开关稳压器
  • LT3080 - 可调 1.1A、单电阻、低压差稳压器
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