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LM5085的基本参数
  • 制造厂商:TI
  • 产品类别:电源管理
  • 技术类目:直流/直流开关稳压器 - 降压稳压器
  • 功能描述:4.5V 至 75V 宽输入电压、恒定导通时间非同步 PFET 降压控制器
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LM5085的产品详情:

The LM5085 is a high efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, efficient buck regulator for a wide range of applications. This high voltage controller contains a PFET gate driver and a high voltage bias regulator which operates over a wide 4.5-V to 75-V input range. The constant on-time regulation principle requires no loop compensation, simplifies circuit implementation, and results in ultrafast load transient response. The operating frequency remains nearly constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The PFET architecture allows 100% duty cycle operation for a low dropout voltage. Either the RDS(ON) of the PFET or an external sense resistor can be used to sense current for over-current detection.

LM5085的优势和特性:
  • LM5085-Q1 is an Automotive Grade Product that is AEC-Q100 Grade 1 Qualified (–40°C to 125°C Operating Junction Temperature)
  • Wide 4.5-V to 75-V Input Voltage Range
  • Adjustable Current Limit Using RDS(ON) or a Current Sense Resistor
  • Programmable Switching Frequency to 1MHz
  • No Loop Compensation Required
  • Ultra-Fast Transient Response
  • Nearly Constant Operating Frequency with Line and Load Variations
  • Adjustable Output Voltage from 1.25 V
  • Precision ±2% Feedback Reference
  • Capable of 100% Duty Cycle Operation
  • Internal Soft-start Timer
  • Integrated High Voltage Bias Regulator
  • Thermal Shutdown
  • Package:
    • HVSSOP-8
    • VSSOP-8
    • WSON-8
LM5085的参数(英文):
  • Vin (Min) (V)
  • 4.5
  • Vin (Max) (V)
  • 75
  • Vout (Min) (V)
  • 1.25
  • Vout (Max) (V)
  • 75
  • Iout (Max) (A)
  • 10
  • Iq (Typ) (uA)
  • 1300
  • Switching frequency (Min) (kHz)
  • 50
  • Switching frequency (Max) (kHz)
  • 1000
  • Features
  • Adjustable Current Limit, Enable, Frequency Synchronization
  • Regulated outputs (#)
  • 1
  • Number of phases
  • 1
  • Rating
  • Catalog
LM5085具体的完整产品型号参数及价格(美元):

LM5085的完整型号有:LM5085MM/NOPB、LM5085MME/NOPB、LM5085MMX/NOPB、LM5085MY/NOPB、LM5085MYE/NOPB、LM5085MYX/NOPB、LM5085SD/NOPB、LM5085SDE/NOPB、LM5085SDX/NOPB,以下是这些产品的关键参数及官网采购报价:

LM5085MM/NOPB,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085MM/NOPB的批量USD价格:.988(1000+)

LM5085MME/NOPB,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085MME/NOPB的批量USD价格:.988(1000+)

LM5085MMX/NOPB,工作温度:-40 to 125,封装:VSSOP (DGK)-8,包装数量MPQ:3500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085MMX/NOPB的批量USD价格:.823(1000+)

LM5085MY/NOPB,工作温度:-40 to 125,封装:HVSSOP (DGN)-8,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085MY/NOPB的批量USD价格:.988(1000+)

LM5085MYE/NOPB,工作温度:-40 to 125,封装:HVSSOP (DGN)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085MYE/NOPB的批量USD价格:.988(1000+)

LM5085MYX/NOPB,工作温度:-40 to 125,封装:HVSSOP (DGN)-8,包装数量MPQ:3500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085MYX/NOPB的批量USD价格:.823(1000+)

LM5085SD/NOPB,工作温度:-40 to 125,封装:WSON (NGQ)-8,包装数量MPQ:1000个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085SD/NOPB的批量USD价格:.988(1000+)

LM5085SDE/NOPB,工作温度:-40 to 125,封装:WSON (NGQ)-8,包装数量MPQ:250个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085SDE/NOPB的批量USD价格:.988(1000+)

LM5085SDX/NOPB,工作温度:-40 to 125,封装:WSON (NGQ)-8,包装数量MPQ:4500个,MSL 等级/回流焊峰值温度:Level-1-260C-UNLIM,引脚镀层/焊球材料:SN,TI官网LM5085SDX/NOPB的批量USD价格:.823(1000+)

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LM5085的评估套件:

LM5085EVAL — LM5085 - 75V 恒准时 PFET 降压开关控制器评估模块

The LM5085 evaluation board provides the design engineer with a fully functional buck regulator, employing the LM5085 PFET switching controller which uses the constant on-time (COT) operating principle. The evaluation board provides a 5V output over an input range of 5.5V to 55V. The circuit (...)

LM5085 PSpice Transient Model (Rev. A)

PSpice for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

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LM25085-5085QUICK-CALC — LM(2)5085 快速入门计算器

This hysteretic buck converter delivers greater than 97% efficiency, low cost and small area. Additional benefits are very low output ripple voltage and excellent load transient response.
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