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4.3-5.5V 0.55A 1ch LDO - BD3507HFV

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=300mΩ (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 = 300mΩ / 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.

* This product is a STANDARD grade product and not recommend for on-vehicle devices.
número de peça
Estado de Condição
pacote
Quantidade Unidade
Quantidade mínima Package
tipo de embalagem
RoHS
BD3507HFV-TR Active HVSOF6 3000 3000 Taping sim
 
especificações:
Grade Standard
Breakdown Voltage(Max.)[V] 6.0
ch 1
Vin(Min.)[V] 4.5
Vin(Max.)[V] 5.5
Vin 2ch[V] 1.2 to Vcc-1
Vout (Typ.) [V] 0.65 to 2.7
Vout Precision ±1.0
Iout(Max.)[A] 0.55
Thermal Shut-down Recover
Over Current Protection Yes
Under Voltage Lock Out Yes
Soft Start Variable
Operating Temperature (Min.)[°C] -10
Operating Temperature (Max.)[°C] 100
características:
  • ・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)
 
 
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Dados técnicos
Table of resistance for output voltage setting on linear regulator Ics

This application notes provide tables for each series so that it is easy to set the resistance value for the output voltage setting from various internal reference voltages VREF.

Thermal Resistance

The definition and how to use thermal resistance and thermal characterization parameter of packages for ROHM’s integrated circuit are described in this application note.

Basics of Linear Regulators

A linear regulator, also referred to as a "three-terminal regulator" or "dropper," is a power supply long known to many designers owning to its simple circuitry and ease of use...

Linear Regulator Specifications

Very important information such as maximum ratings, operating conditions and characteristic graphs are described in the table.

Reverse Voltage Protection

A linear regulator integrated circuit (IC) is a DC-to-DC buck converter system that reduces a DC supply from higher voltage level to a lower voltage level...

Simple Test Method for Estimating the Stability of Linear Regulators

Low drop-out (LDO) regulators developed back in the age when large-capacitance multi-layer ceramic capacitors (hereinafter, MLCCs) were uncommon cause a phase delay, leading to oscillation when connected to a low-ESR capacitor like an MLCC...

Thermal Calculation for Linear Regulator

The loss in linear regulators increases as the difference between the input and output voltages increases. Since most of the loss is converted to heat, a very large amount of heat may be generated in some conditions...

Power Source ON/OFF Characteristics for Linear Regulator

When a linear regulator IC is turned ON, the electric charge is stored in the output capacitor and the output voltage increases up to the specified value.

BAxxCC0 Series Circuit Using a Ceramic Output Capacitor

This application note proposes a circuit using an output ceramic capacitor that allows a stable phase compensation.

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

This application note introduces a method for easily measuring the phase margin with a Frequency Response Analyzer (FRA) made by NF Corporation.

Connecting LDOs in Parallel

Provides some hints on how to connect LDOs in parallel.