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LM5085 - 产品图解：
LM5085-75V 宽输入电压恒定导通时间 PFET 降压开关控制器
LM5085-控制器（外部开关）-DC/DC开关稳压器-电源管理
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TI产品 - LM5085介绍

LM5085 - 75V 宽输入电压恒定导通时间 PFET 降压开关控制器

LM5085是TI德州仪器公司的一款控制器（外部开关）产品，LM5085是75V 宽输入电压恒定导通时间 PFET 降压开关控制器，本站介绍了LM5085的封装应用图解、特点和优点、功能等，并给出了与LM5085相关的TI元器件型号供参考。

LM5085 - 75V 宽输入电压恒定导通时间 PFET 降压开关控制器 - 控制器（外部开关） - DC/DC开关稳压器 - 德州仪器

产品特性
  • 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
产品应用
  • Automotive Infotainment
  • Battery/Super Capacitor Chargers
  • LED Drivers
产品说明

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.

产品器件信息
PART NUMBERPACKAGEBODY SIZE (NOM)
LM5085VSSOP (8)3.00 mm x 3.00 mm
HVSSOP (8)
WSON (8)
LM5085-Q1HVSSOP (8)3.00 mm x 3.00 mm
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