550mA Variable Output, High-Accuracy LDO Regulator

The BD3507HFV is suited for power supply for chipset bus. Though small in size, BD3507HFV adopts power PKG with radiation fins, and it therefore can be used for a regulator up to 550mA. Because it adopts Nch MOSFET and can form a ultra low dropout power supply of RON=300m? (TYP), BD3507HFV can compose a high-efficiency system, though it is of a linear type power supply. The output voltage can be set by VREF terminal and can be synchronized with other power supply. In addition, it can be used as a high side switch (RON = 300m? / lo = 550mA) of low-voltage power supply line. Because ceramic capacitors can be used for output capacitors, BD3507HFV contributes to downsizing and reduced thickness not only of IC but also of sets.

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* This is a standard-grade product.
For Automotive usage, please contact Sales.

Product Detail

Part Number | BD3507HFV-TR
Status | Recommended
Package | HVSOF6
Unit Quantity | 3000
Minimum Package Quantity | 3000
Packing Type | Taping
RoHS | Yes




Breakdown Voltage(Max.)[V]








Vout (Typ.) [V]

0.65 to 2.7

Vin 2ch[V]

1.2 to Vcc-1

Vout Precision




Circuit Current[mA]


Thermal Shut-down


Over Current Protection


Under Voltage Lock Out


Soft Start


Operating Temperature (Min.)[°C]


Operating Temperature (Max.)[°C]


Package Size

1.6x3 (t=0.75)


・Built-in high-accuracy buffer circuit (can be set to 0.65-2.7V)
・Adoption of ceramic capacitors
・Built-in enable function (0μA at standby)
・Built-in current limiting circuit (550mA Max)
・Built-in undervoltage lockout circuit (UVLO)
・Built-in thermal shutdown circuit (TSD)
・Adoption of ultra-small-size high-power HVSOF6 package (BD3507HFV:3.0×1.6×0.75mm)
・Incorporates small-size high-power HSON8 (BD3507HFN:2.9×3.0×0.6mm)

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
  • Table of resistance for output voltage setting on linear regulator Ics
  • Suppression Method of Switching Noise Using Linear Regulator and Low Pass Filter
  • Measurement Method for Phase Margin with Frequency Response Analyzer (FRA)
  • Usage of SPICE Macromodel (for LDO)
  • BAxxCC0 Series Circuit Using a Ceramic Output Capacitor
  • Importance of Probe Calibration When Measuring Power: Deskew
  • Impedance Characteristics of Bypass Capacitor

Thermal Design

  • What Is Thermal Design
  • Basics of Thermal Resistance and Heat Dissipation
  • Method for Calculating Junction Temperature from Transient Thermal Resistance Data
  • Thermal Calculation for Linear Regulator
  • Thermal Resistance



  • HVSOF6 Footprint / Symbol
  • HVSOF6 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)