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LM25085-Q1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:汽车级 4.5V 至 42V 宽输入电压、恒定导通时间非同步 PFET 降压控制器
  • 点击这里打开及下载LM25085-Q1的技术文档资料
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LM25085-Q1的产品详情:

The LM25085 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 4.5V to 42V input range. The constant on-time regulation principle requires no loop compensation, simplifies circuit implementation, and results in ultra-fast 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.

LM25085-Q1的优势和特性:
  • LM25085-Q1 is an Automotive Grade product that is AEC-Q100 Grade 1 Qualified (–40°C to 125°C Operating Junction Temperature)
  • Wide 4.5V to 42V 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 1.25V
  • Precision ±2% Feedback Reference
  • Capable of 100% Duty Cycle Operation
  • Internal Soft-Start Timer
  • Integrated High Voltage Bias Regulator
  • Thermal Shutdown
LM25085-Q1的参数(英文):
  • Vin (Min) (V)
  • 4.5
  • Vin (Max) (V)
  • 42
  • Vout (Min) (V)
  • 1.25
  • Vout (Max) (V)
  • 42
  • Iout (Max) (A)
  • 10
  • Iq (Typ) (uA)
  • 1250
  • Switching frequency (Min) (kHz)
  • 50
  • Switching frequency (Max) (kHz)
  • 1000
  • Features
  • Adjustable Current Limit, Frequency Synchronization
  • Regulated outputs (#)
  • 1
  • Number of phases
  • 1
  • Rating
  • Automotive
LM25085-Q1具体的完整产品型号参数及价格(美元):

LM25085-Q1的完整型号有:LM25085QMY/NOPB、LM25085QMYE/NOPB、LM25085QMYX/NOPB,以下是这些产品的关键参数及官网采购报价:

LM25085QMY/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LM25085QMY/NOPB的批量USD价格:.936(1000+)

LM25085QMYE/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LM25085QMYE/NOPB的批量USD价格:.936(1000+)

LM25085QMYX/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LM25085QMYX/NOPB的批量USD价格:.8(1000+)

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LM25085-Q1的评估套件:

LM25085MYEVAL — 用于 LM25085 的评估板 - 42V 恒准时 PFET 降压开关控制器

The LM25085 evaluation board provides the design engineer with a fully functional buck regulator, employing the LM25085 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 42V. The circuit (...)

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