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LT3435 - 典型应用图例：
LT3435典型应用图例一
LT3435典型应用图例二
LT3435 - 封装图解：
LT3435封装图解一
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LINEAR产品 - LT3435介绍

LT3435 - LT3435是High Voltage 3A, 500kHz Step-Down Switching Regulator with 100μA Quiescent Current

LT3435是LINEAR凌力尔特公司的一款微功率降压产品，LT3435是LT3435是High Voltage 3A, 500kHz Step-Down Switching Regulator with 100μA Quiescent Current，本站介绍了LT3435的封装应用图解、特点和优点、功能等，并给出了与LT3435相关的LINEAR元器件型号供参考。

LT3435 - LT3435是High Voltage 3A, 500kHz Step-Down Switching Regulator with 100μA Quiescent Current - 微功率降压 - 电源管理 - 凌力尔特

LT3435 - High Voltage 3A, 500kHz Step-Down Switching Regulator with 100μA Quiescent Current

LT3435 - High Voltage 3A, 500kHz Step-Down Switching Regulator with 100μA Quiescent Current - Linear Technology（凌力尔特）

功能描述

The LT3435 is a 500kHz monolithic buck switching regulator that accepts input voltages up to 60V. A high efficiency 3A, 0.1Ω switch is included on the die along with all the necessary oscillator, control and logic circuitry. Current mode topology is used for fast transient response and good loop stability.

Innovative design techniques along with a new high voltage process achieve high efficiency over a wide input range. Efficiency is maintained over a wide output current range by employing Burst Mode operation at low currents, utilizing the output to bias the internal circuitry, and by using a supply boost capacitor to fully saturate the power switch. Patented circuitry maintains peak switch current over the full duty cycle range.* Shutdown reduces input supply current to less than 1μA. External synchronization can be implemented by driving the SYNC pin with logic-level inputs. A single capacitor from the CSS pin to the output provides a controlled output voltage ramp (soft-start). The device also has a power good flag with a programmable threshold and time-out and thermal shutdown protection.

The LT3435 is available in a 16-pin TSSOP package with an exposed pad leadframe for low thermal resistance.

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特点
  • Wide Input Range: 3.3V to 60V
  • 3A Peak Switch Current
  • Burst Mode Operation: 100μA Quiescent Current**
  • Low Shutdown Current: IQ < 1μA
  • Power Good Flag with Programmable Threshold
  • Load Dump Protection to 60V
  • 500kHz Switching Frequency
  • Saturating Switch Design: 0.1Ω On-Resistance
  • Peak Switch Current Maintained Over
  • Full Duty Cycle Range*
  • 1.25V Feedback Reference Voltage
  • Easily Synchronizable
  • Soft-Start Capability
  • Small 16-Pin Thermally Enhanced TSSOP Package
    • 应用
  • High Voltage Power Conversion
  • 14V and 42V Automotive Systems
  • Industrial Power Systems
  • Distributed Power Systems
  • Battery-Powered Systems
  • USB Powered 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)
    LT3435EFE TSSOP-16 E $7.50 $5.25
    LT3435EFE#PBF TSSOP-16 E $7.50 $5.25
    LT3435EFE#TR TSSOP-16 E $5.37
    LT3435EFE#TRPBF TSSOP-16 E $5.37
    LT3435IFE TSSOP-16 I $8.63 $6.04
    LT3435IFE#PBF TSSOP-16 I $8.63 $6.04
    LT3435IFE#TR TSSOP-16 I $6.16
    LT3435IFE#TRPBF TSSOP-16 I $6.16
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  • LT3431 - High Voltage, 3A, 500kHz Step-Down Switching Regulator
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  • LT3995 - 具 2.7μA 静态电流的 60V、3A、2MHz 降压型开关稳压器
  • LT8610 - 具 2.5μA 静态电流的 42V、2.5A 同步降压型稳压器
  • LTC3891 - 低 Iq、60V、同步降压型控制器
  • LT3724 - 高电压、电流模式开关稳压控制器
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