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DDR-SDRAM用终端用线性电源_BD3531F

BD3531F是适用于JEDEC标准DDR-SDRAM的终端稳压器。内置N-MOSFET,漏型/源型最大可提供1.5A电流的线性电源。内部的OP-AMP采用高速设计,实现了优异的瞬态响应特性。为驱动内部的N-MOSFET,需要5.0V偏压电源。为确保JEDEC规定的电压精度,本产品拥有独立的基准输入引脚(VDDQ)和独立的反馈引脚(VTTS),实现了优异的输出电压精度和负载调整率。还有DDR-SDRAM、存储器控制器用基准电源输出引脚(VREF)。EN引脚=L时,VTT输出为Hi-Z,并保持VREF输出,对应DDR-SDRAM的Self Refresh状态。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD3531F-FE2 供应中 SOP8 2500 2500 Taping Yes
 
特性:
Grade Standard
ch 1
Vin(Min.)[V] 4.5
Vin(Max.)[V] 5.5
Vin 2ch[V] 1.0 to 5.5
Iout(Max.)[A] 1.5
Circuit Current[mA] 2.0
Thermal Shut-down Yes
Under Voltage Lock Out Yes
Operating Temperature (Min.)[°C] -10
Operating Temperature (Max.)[°C] 100
特点:
    • Incorporates a Push-Pull Power Supply for Termination (VTT)
    • Incorporates a Reference Voltage Circuit (VREF)
    • Incorporates an Enabler
    • Incorporates an Undervoltage Lockout (UVLO)
    • Incorporates a Thermal Shutdown Protector (TSD)
    • Compatible with Dual Channel (DDR-II)
 
 
技术信息
Application Note

Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)

Application Note

Reverse Voltage Protection

Application Note

Power Source ON/OFF Characteristics for Linear Regulator

Application Note

Thermal Resistance

Application Note

Simple Test Method for Estimating the Stability of Linear Regulators

Application Note

BAxxCC0 Series Circuit Using a Ceramic Output Capacitor

Application Note

Basics of Linear Regulators

Application Note

Linear Regulator Specifications

Application Note

Thermal Calculation for Linear Regulator