BD3533F
針對DDR-SDRAM的終端用線性電源

BD3533F是適用於JEDEC標準DDR－SDRAM的終端穩壓器。內建N-MOSFET，漏極/源極最大可提供1A電流的線性電源。內部的OP-AMP採用高速設計，實現了優異的暫態響應特性。為驅動內部的N-MOSFET，需要3.3V或5.0V偏壓電源。為確保JEDEC規定的電壓精度，本產品擁有獨立的基準輸入引腳（VDDQ）和獨立的反饋引腳（VTTS），實現了優異的輸出電壓精度和負載調整率。還有DDR-SDRAM、存儲器控制器用基準電源輸出引腳（VREF）。EN引腳=L時，VTT輸出為Hi-Z，並保持VREF輸出，對應DDR-SDRAM的Self Refresh狀態。

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* 本產品是標準級的產品。
本產品不建議使用的車載設備。
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Product Detail

 
料號 | BD3533F-E2
狀態 | 推薦品
封裝 | SOP8
單位數量 | 2500
最小包裝數量 | 2500
包裝形式 | Taping
RoHS | Yes

規格:

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

功能:

· 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)
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Design Resources

 

Technical Articles

Schematic Design & Verification

  • Basics of Linear Regulators
  • Linear Regulator Specifications
  • 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
  • Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
  • BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • Thermal Calculation for Linear Regulator
  • Thermal Resistance

Tools

2D/3D/CAD

  • SOP8 Footprint / Symbol
  • SOP8 3D STEP Data

Packaging & Quality

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)