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4.3-5.5V 0.55A 1ch LDO_BD3507HFV

超低饱和稳压器BD3507HFV作为用于芯片组的电源非常合适。输出电容器能够使用陶瓷电容器,因此不仅有助于IC而且有助于装置的小型化薄型化。虽然是小型的但采用了带有散热片的功率封装,因此能够作为最大电流550mA的稳压器使用。采用Nch MOSFET可以构成RON=300mΩ(TYP)的超低饱和电源,所以虽然是线性型电源却能构成高效率的系统。输出电压可以通过VREF端子设定,可以与其他电源同步。另外,还可以作为低电压电源产品线(1.2~2.5V)的高边开关(RON=300mΩ/Io=550mA)使用。

* 本产品是标准级的产品。本产品不建议使用的车载设备。
型号
Status
封装
包装数量
最小独立包装数量
包装形态
RoHS
BD3507HFV-TR 供应中 HVSOF6 3000 3000 Taping Yes
 
特性:
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
特点:
  • ・内置高精度缓冲电路(可以设定为0.65~2.7V)
    ・支持陶瓷电容器
    ・内置使能功能(待机时0μA)
    ・内置电流限制电路(550mA Max)
    ・内置低输入防止误动作电路(UVLO)
    ・内置过热保护电路(TSD)
    ・采用超小型高功率HVSOF6封装(BD3507HFV:3.0×1.6×0.75mm)
    ・采用小型高功率HSON8封装(BD3507HFN:2.9×3.0×0.6mm)
 
 
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技术信息
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.