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LM3485-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 35V、滞环非同步 PFET 降压控制器
  • 点击这里打开及下载LM3485-Q1的技术文档资料
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LM3485-Q1的产品详情:

The LM3485 is a high-efficiency PFET switching regulator controller that can be used to quickly and easily develop a small, low-cost, switching buck regulator for a wide range of applications. The hysteretic control architecture provides for simple design without any control-loop stability concerns using a wide variety of external components. The PFET architecture also allows for low component count as well as ultralow dropout, 100% duty cycle operation. Another benefit is high efficiency operation at light loads without an increase in output ripple.

Current limit protection is provided by measuring the voltage across the RDS(ON) of the PFET, thus eliminating the need for a sense resistor. The cycle-by-cycle current limit can be adjusted with a single resistor, ensuring safe operation over a range of output currents.

LM3485-Q1的优势和特性:
  • Easy-to-Use Control Methodology
  • No Control-Loop Compensation Required
  • 4.5-V to 35-V Wide Input Range
  • 1.242-V to VIN Adjustable Output Range
  • High Efficiency 93%
  • ±1.3% (±2% Over Temp) Internal Reference
  • 100% Duty Cycle
  • Maximum Operating Frequency > 1 MHz
  • Current Limit Protection
LM3485-Q1的参数(英文):
  • Vin (Min) (V)
  • 4.5
  • Vin (Max) (V)
  • 35
  • Vout (Min) (V)
  • 1.242
  • Vout (Max) (V)
  • 35
  • Iout (Max) (A)
  • 4
  • Iq (Typ) (uA)
  • 250
  • Switching frequency (Min) (kHz)
  • 50
  • Switching frequency (Max) (kHz)
  • 1000
  • Features
  • Enable
  • Regulated outputs (#)
  • 1
  • Number of phases
  • 1
  • Rating
  • Automotive
LM3485-Q1具体的完整产品型号参数及价格(美元):

LM3485-Q1的完整型号有:LM3485Q1MM/NOPB,以下是这些产品的关键参数及官网采购报价:

LM3485Q1MM/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LM3485Q1MM/NOPB的批量USD价格:.602(1000+)

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LM3485-Q1的评估套件:

LM3485EVAL — 滞后 PFET 降压控制器评估模块

Hysteretic PFET Buck Controller

LM3485LED-EVAL — 滞后 PFET 降压控制器

The LM3485 LED driver board is a buck regulator derived controlled current source designed to drive high power, high brightness LEDs (HBLEDs) such as the Luxeon Emitter at dissipations of 1W to 5W. The board can accept an input voltage ranging from 5V to 30V and can control the output current (...)

LM3485 PSpice Transient Model

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