BD3537F
Termination Regulator for DDR-SDRAMs

BD3537F is a termination regulator that complies with JEDEC requirements for DDR-SDRAM, This linear power supply uses a built-in N-channel MOSFET and high-speed OP-AMPS specially designed to provide excellent transient response. It has a sink/source current capability up to 1.8A and has a power supply bias requirement of 5.0V for driving the N-channel MOSFET. For BD3537F, ceramic capacitor can be used as output capacitor enabling significant package profile downsizing as the total regulator part.

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Product Detail

 
Part Number | BD3537F-E2
Status | Recommended
Package | SOP8
Unit Quantity | 2500
Minimum Package Quantity | 2500
Packing Type | Taping
RoHS | Yes

Specifications:

Grade

Standard

ch

1

Vin(Min.)[V]

4.75

Vin(Max.)[V]

5.25

Vin 2ch[V]

1.746 to 1.854

Iout(Max.)[A]

1.8

Circuit Current[mA]

1.0

Thermal Shut-down

Yes

Under Voltage Lock Out

Yes

Soft Start

Yes

Operating Temperature (Min.)[°C]

-30

Operating Temperature (Max.)[°C]

100

Features:

  • Incorporates a Push-Pull Power Supply for Termination (VTT)
  • Incorporates an Enabler
  • Incorporates an Undervoltage Lockout (UVLO)
  • Incorporates a Thermal Shutdown Protector (TSD)
  • Compatible with Dual Channel (DDR-II)
  • Incorporates Soft-start Function

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)