BD3533F
面向DDR-SDRAM的终端用线性电源

BD3533F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1A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3.3V或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。

Data Sheet 购买 *
* 本产品是标准级的产品。
本产品不建议使用于车载设备。

主要规格

 
型号 | BD3533F-E2
Status | 推荐品
封装 | SOP8
包装数量 | 2500
最小独立包装数量 | 2500
包装形态 | Taping
RoHS | Yes

特性:

Grade

Standard

ch

1

Vin(Min.)[V]

2.7

Vin(Max.)[V]

5.5

Vout (Typ.) [V]

0.75 to 1.25

Iout(Max.)[A]

3.0

Circuit Current[mA]

2.0

Thermal Shut-down

Yes

Under Voltage Lock Out

Yes

Operating Temperature (Min.)[°C]

-20

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 Under Voltage Lockout (UVLO)
· Incorporates a Thermal Shutdown Protector (TSD)
· Compatible with Dual Channel (DDR-2)

设计资源

 

技术记事

Schematic Design & Verification

  • 线性稳压器的基础
  • 线性稳压器的规格
  • Reverse Voltage Protection
  • Power Source ON/OFF Characteristics for Linear Regulator
  • Simple Test Method for Estimating the Stability of Linear Regulators
  • Connecting LDOs in Parallel
  • Problem Situations: Power Supply Does Not Start
  • Power Supply Sequence Circuit with General Purpose Power Supply IC
  • Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
  • 通过频率特性分析仪FRA测试相位余量的方法
  • BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
  • 功率测量中探针校正的重要性 倾斜校正篇
  • 旁路电容器的阻抗特性

Thermal Design

  • 使用瞬态热阻抗计算结温的方法
  • Thermal Calculation for Linear Regulator
  • 热阻、热特性参数

设计模型

2D/3D/CAD

  • SOP8 Footprint / Symbol
  • SOP8 3D STEP Data

封装和质量数据

Package Information

  • Package Information
  • Anti-Whisker formation

Manufacturing Data

  • Factory Information

Environmental Data

  • UL94 Flame Classifications of Mold Compound
  • Compliance with the ELV directive
  • REACH SVHC Non-use Declaration
  • RoHS Comission Delegated Directive

Export Information

  • The Export Control Order
  • Export Administration Regulations(EAR)